diff --git a/INSTALL b/INSTALL
index b743cd26b..7c90f16ba 100644
--- a/INSTALL
+++ b/INSTALL
@@ -29,16 +29,16 @@ If you do not have access to the online version, follow the following recipies.
      export NDK_PATH=/opt/android-ndk
      export ANDROID_API=23
      export TOOLCHAIN_PATH=${NDK_PATH}/toolchains/llvm/prebuilt/linux-x86_64 # use darwin instead of linux if compiling on Mac OS host
-	  export TARGET=armv7a-linux-androideabi
+     export TARGET=armv7a-linux-androideabi
   #+END_SRC
 2. Build and install the target library
    #+BEGIN_SRC shell-script
-	  export CC="${TOOLCHAIN_PATH}/bin/clang --target=${TARGET}${ANDROID_API}"
-	  export LD=${TOOLCHAIN_PATH}/bin/ld
-	  export AR=${TOOLCHAIN_PATH}/bin/llvm-ar
-	  export RANLIB=${TOOLCHAIN_PATH}/bin/llvm-ranlib
+     export CC="${TOOLCHAIN_PATH}/bin/clang --target=${TARGET}${ANDROID_API}"
+     export LD=${TOOLCHAIN_PATH}/bin/ld
+     export AR=${TOOLCHAIN_PATH}/bin/llvm-ar
+     export RANLIB=${TOOLCHAIN_PATH}/bin/llvm-ranlib
      export ECL_TO_RUN=/usr/local/bin/ecl
-    ./configure --host=${TARGET} \
+     ./configure --host=${TARGET} \
                  --prefix=`pwd`/ecl-android \
                  --disable-c99complex \
                  --with-cross-config=`pwd`/src/util/android-arm.cross_config
@@ -83,7 +83,7 @@ If you do not have access to the online version, follow the following recipies.
 3. Library and assets in the ecl-iOS directory are ready to run on
    the iOS system.
 
-* Cross-compile for the WASM platform (via emscripten)
+* Cross-compile for the WASM/Emscripten platform
 
 Emscripten target is a little fickle so keep in mind that:
 
@@ -171,6 +171,34 @@ imoprtant to specify a different size. For example:
   emcc program.c -sSTACK_SIZE=1048576 lib/*.a -I./include -o program.o
 #+end_src
 
+* Cross-compile for the WASM/WASI platform
+
+1. Configure the toolchain (see https://github.com/WebAssembly/wasi-sdk)
+   and export the necessary paths:
+   #+BEGIN_SRC sh
+     export WASI_SDK_PATH=/opt/wasi-sdk
+     export TARGET=wasm32-unknown-wasi
+  #+END_SRC
+2. Build and install the target library
+   #+BEGIN_SRC sh
+     export CC="${WASI_SDK_PATH}/bin/clang --sysroot=${WASI_SDK_PATH}/share/wasi-sysroot"
+     export LD=${WASI_SDK_PATH}/bin/ld
+     export AR=${WASI_SDK_PATH}/bin/llvm-ar
+     export RANLIB=${WASI_SDK_PATH}/bin/llvm-ranlib
+     export ECL_TO_RUN=/usr/local/bin/ecl
+     ./configure --host=${TARGET} \
+                 --prefix=`pwd`/ecl-wasi \
+                 --disable-c99complex \
+                 --disable-shared \
+                 --with-tcp=no \
+                 --with-cmp=no \
+                 --with-cross-config=`pwd`/src/util/wasm32-unknown-wasi.cross_config
+     make -j9
+     make install
+   #+END_SRC
+3. Library and assets in the ecl-android directory are ready to run on
+   the Android system.
+
 * Build using Cosmopolitan toolchain (experimental)
 
 Binaries built with cosmopolitan toolchain can be executed on numerous platforms
diff --git a/src/aclocal.m4 b/src/aclocal.m4
index 28c7ffd7c..5293999c6 100644
--- a/src/aclocal.m4
+++ b/src/aclocal.m4
@@ -583,6 +583,28 @@ case "${host}" in
                 ECL_ADD_FEATURE(c-compatible-variadic-dispatch)
                 ECL_ADD_FEATURE(emscripten)
                 ;;
+        wasm32-unknown-wasi)
+                # Non-zero optimization levels seem to be slower in
+                # combination with the binaryen spill-pointers pass.
+                CFLAGS="${CFLAGS} -D_WASI_EMULATED_SIGNAL -D_WASI_EMULATED_PROCESS_CLOCKS -DECL_C_COMPATIBLE_VARIADIC_DISPATCH -O0  -mllvm -wasm-enable-sjlj"
+                clibs="-lwasi-emulated-signal -lwasi-emulated-process-clocks -lsetjmp ${clibs}"
+                # The default stack size is 64KB, that's too little
+                # for ECL. The spill-pointers pass is needed for the
+                # gc to find pointers on the stack.
+                #LDFLAGS="${LDFLAGS} -sSTACK_SIZE=1048576 -sBINARYEN_EXTRA_PASSES=--spill-pointers"
+                enable_threads='no'
+                enable_libffi='no'
+                enable_gmp='portable'
+                with_c_gmp=yes
+                with_tcp=no
+                shared="no"
+                dnl SHARED_LDFLAGS="-shared ${LDFLAGS}"
+                dnl BUNDLE_LDFLAGS="-shared ${LDFLAGS}"
+                INSTALL_TARGET='flatinstall'
+                AC_DEFINE([ECL_C_COMPATIBLE_VARIADIC_DISPATCH], [], [Do the fixed and optional arguments of a variadic function use a different calling convention?])
+                ECL_ADD_FEATURE(c-compatible-variadic-dispatch)
+                ECL_ADD_FEATURE(wasi)
+                ;;
 esac
 
 if test "${INSTALL_TARGET}" = "flatinstall"; then
diff --git a/src/bdwgc/include/private/gcconfig.h b/src/bdwgc/include/private/gcconfig.h
index c1cf80fb1..2d6ba224a 100644
--- a/src/bdwgc/include/private/gcconfig.h
+++ b/src/bdwgc/include/private/gcconfig.h
@@ -714,6 +714,14 @@ EXTERN_C_BEGIN
 #   define mach_type_known
 # endif
 
+# if defined(__wasi__) || defined(WASI)
+#   ifndef WASI
+#     define WASI
+#   endif
+#   define I386
+#  define mach_type_known
+# endif
+
 /* Feel free to add more clauses here */
 
 /* Or manually define the machine type here.  A machine type is         */
@@ -1444,6 +1452,20 @@ EXTERN_C_BEGIN
 #       error No threads support yet
 #     endif
 #   endif
+#   ifdef WASI
+#     define OS_TYPE "WASI"
+#     define DATASTART (ptr_t)ALIGNMENT
+#     define DATAEND (ptr_t)ALIGNMENT
+      /* Emscripten does emulate mmap and munmap, but those should  */
+      /* not be used in the collector, since WebAssembly lacks the  */
+      /* native support of memory mapping.  Use sbrk() instead.     */
+#     undef USE_MMAP
+#     undef USE_MUNMAP
+#     define STACK_GROWS_DOWN
+#     if defined(GC_THREADS) && !defined(CPPCHECK)
+#       error No threads support yet
+#     endif
+#   endif
 #   if defined(__QNX__)
 #     define OS_TYPE "QNX"
 #     define SA_RESTART 0
diff --git a/src/bdwgc/os_dep.c b/src/bdwgc/os_dep.c
index e90c77250..c12e08297 100644
--- a/src/bdwgc/os_dep.c
+++ b/src/bdwgc/os_dep.c
@@ -1361,8 +1361,8 @@ GC_INNER size_t GC_page_size = 0;
         }
 #     elif defined(STACK_NOT_SCANNED) || defined(CPPCHECK)
         result = NULL;
-#     else
-#       error None of HEURISTIC* and *STACKBOTTOM defined!
+/* #     else */
+/* #       error None of HEURISTIC* and *STACKBOTTOM defined! */
 #     endif
 #     if defined(STACK_GROWS_DOWN) && !defined(CPPCHECK)
         if (result == 0)
diff --git a/src/c/unixfsys.d b/src/c/unixfsys.d
index 56a6e48ea..1be45d4df 100644
--- a/src/c/unixfsys.d
+++ b/src/c/unixfsys.d
@@ -1261,11 +1261,13 @@ si_mkstemp(cl_object template)
 # ifdef HAVE_MKSTEMP
   fd = mkstemp(ecl_filename_self(output));
 # else
+#  if 0
   if (mktemp(ecl_filename_self(output))) {
     fd = ecl_open(ecl_filename_self(output), O_CREAT|O_TRUNC, 0666);
   } else {
     fd = -1;
   }
+#  endif
 # endif
   ecl_enable_interrupts();
 
diff --git a/src/c/unixsys.d b/src/c/unixsys.d
index 32eae16c0..a79a83bd3 100644
--- a/src/c/unixsys.d
+++ b/src/c/unixsys.d
@@ -136,7 +136,7 @@ si_environ(void)
 cl_object
 si_getpid(void)
 {
-#if defined(NACL)
+#if defined(NACL) || defined(__wasi__)
   FElibc_error("si_getpid not implemented",1);
   @(return ECL_NIL);
 #else
@@ -149,6 +149,8 @@ si_getuid(void)
 {
 #if defined(ECL_MS_WINDOWS_HOST)
   @(return ecl_make_fixnum(0));
+#elif defined(__wasi__)
+  FElibc_error("si_getuid not implemented",1);
 #else
   @(return ecl_make_integer(getuid()));
 #endif
@@ -160,7 +162,7 @@ ecl_def_ct_base_string(fake_out_name, "PIPE-WRITE-ENDPOINT", 19, static, const);
 cl_object
 si_make_pipe()
 {
-#if defined(NACL)
+#if defined(NACL) || defined(__wasi__)
   FElibc_error("si_make_pipe not implemented",1);
   @(return ECL_NIL);
 #else
@@ -216,7 +218,7 @@ cl_object
 si_waitpid(cl_object pid, cl_object wait)
 {
   cl_object status, code;
-#if defined(NACL)
+#if defined(NACL) || defined(__wasi__)
   FElibc_error("si_waitpid not implemented",1);
   @(return ECL_NIL);
 #elif defined(ECL_MS_WINDOWS_HOST)
@@ -286,8 +288,13 @@ si_waitpid(cl_object pid, cl_object wait)
 #if !defined(ECL_MS_WINDOWS_HOST)
 cl_object
 si_killpid(cl_object pid, cl_object signal) {
+#if defined(__wasi__)
+  FElibc_error("si_killpid not implemented",1);
+  return ECL_NIL;
+#else
   int ret = kill(ecl_fixnum(pid), ecl_fixnum(signal));
   return ecl_make_fixnum(ret);
+#endif
 }
 #endif
 
@@ -386,6 +393,12 @@ create_descriptor(cl_object stream, cl_object direction,
     FEerror("Invalid ~S argument to EXT:RUN-PROGRAM.", 1, stream);
   }
 }
+#elif defined(__wasi__)
+static void
+create_descriptor(cl_object stream, cl_object direction,
+                  int *child, int *parent) {
+  FElibc_error("si_getuid not implemented",1);
+}
 #else
 static void
 create_descriptor(cl_object stream, cl_object direction,
@@ -464,6 +477,14 @@ si_run_program_inner(cl_object command, cl_object argv, cl_object my_environ, cl
   @(return stream_read exit_status pid)
 }
 
+#if defined(__wasi__)
+cl_object
+si_spawn_subprocess(cl_object command, cl_object argv, cl_object my_environ,
+                    cl_object input, cl_object output, cl_object error) {
+  FElibc_error("si_spawn_subprocess not implemented",1);
+  return ECL_NIL;
+}
+#else
 cl_object
 si_spawn_subprocess(cl_object command, cl_object argv, cl_object my_environ,
                     cl_object input, cl_object output, cl_object error) {
@@ -634,3 +655,4 @@ si_spawn_subprocess(cl_object command, cl_object argv, cl_object my_environ,
     ecl_make_fixnum(parent_read)
     ecl_make_fixnum(parent_error))
 }
+#endif
diff --git a/src/configure b/src/configure
index 57834b92b..03cbd0ed1 100755
--- a/src/configure
+++ b/src/configure
@@ -1,10 +1,10 @@
 #! /bin/sh
 # From configure.ac Revision.
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.71 for ecl 24.5.10.
+# Generated by GNU Autoconf 2.72 for ecl 24.5.10.
 #
 #
-# Copyright (C) 1992-1996, 1998-2017, 2020-2021 Free Software Foundation,
+# Copyright (C) 1992-1996, 1998-2017, 2020-2023 Free Software Foundation,
 # Inc.
 #
 #
@@ -16,7 +16,6 @@
 
 # Be more Bourne compatible
 DUALCASE=1; export DUALCASE # for MKS sh
-as_nop=:
 if test ${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
 then :
   emulate sh
@@ -25,12 +24,13 @@ then :
   # is contrary to our usage.  Disable this feature.
   alias -g '${1+"$@"}'='"$@"'
   setopt NO_GLOB_SUBST
-else $as_nop
-  case `(set -o) 2>/dev/null` in #(
+else case e in #(
+  e) case `(set -o) 2>/dev/null` in #(
   *posix*) :
     set -o posix ;; #(
   *) :
      ;;
+esac ;;
 esac
 fi
 
@@ -102,7 +102,7 @@ IFS=$as_save_IFS
 
      ;;
 esac
-# We did not find ourselves, most probably we were run as `sh COMMAND'
+# We did not find ourselves, most probably we were run as 'sh COMMAND'
 # in which case we are not to be found in the path.
 if test "x$as_myself" = x; then
   as_myself=$0
@@ -132,15 +132,14 @@ case $- in # ((((
 esac
 exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
 # Admittedly, this is quite paranoid, since all the known shells bail
-# out after a failed `exec'.
+# out after a failed 'exec'.
 printf "%s\n" "$0: could not re-execute with $CONFIG_SHELL" >&2
 exit 255
   fi
   # We don't want this to propagate to other subprocesses.
           { _as_can_reexec=; unset _as_can_reexec;}
 if test "x$CONFIG_SHELL" = x; then
-  as_bourne_compatible="as_nop=:
-if test \${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
+  as_bourne_compatible="if test \${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
 then :
   emulate sh
   NULLCMD=:
@@ -148,12 +147,13 @@ then :
   # is contrary to our usage.  Disable this feature.
   alias -g '\${1+\"\$@\"}'='\"\$@\"'
   setopt NO_GLOB_SUBST
-else \$as_nop
-  case \`(set -o) 2>/dev/null\` in #(
+else case e in #(
+  e) case \`(set -o) 2>/dev/null\` in #(
   *posix*) :
     set -o posix ;; #(
   *) :
      ;;
+esac ;;
 esac
 fi
 "
@@ -171,8 +171,9 @@ as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; }
 if ( set x; as_fn_ret_success y && test x = \"\$1\" )
 then :
 
-else \$as_nop
-  exitcode=1; echo positional parameters were not saved.
+else case e in #(
+  e) exitcode=1; echo positional parameters were not saved. ;;
+esac
 fi
 test x\$exitcode = x0 || exit 1
 blah=\$(echo \$(echo blah))
@@ -186,14 +187,15 @@ test \$(( 1 + 1 )) = 2 || exit 1"
   if (eval "$as_required") 2>/dev/null
 then :
   as_have_required=yes
-else $as_nop
-  as_have_required=no
+else case e in #(
+  e) as_have_required=no ;;
+esac
 fi
   if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null
 then :
 
-else $as_nop
-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+else case e in #(
+  e) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 as_found=false
 for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
 do
@@ -226,12 +228,13 @@ IFS=$as_save_IFS
 if $as_found
 then :
 
-else $as_nop
-  if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
+else case e in #(
+  e) if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
 	      as_run=a "$SHELL" -c "$as_bourne_compatible""$as_required" 2>/dev/null
 then :
   CONFIG_SHELL=$SHELL as_have_required=yes
-fi
+fi ;;
+esac
 fi
 
 
@@ -253,7 +256,7 @@ case $- in # ((((
 esac
 exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
 # Admittedly, this is quite paranoid, since all the known shells bail
-# out after a failed `exec'.
+# out after a failed 'exec'.
 printf "%s\n" "$0: could not re-execute with $CONFIG_SHELL" >&2
 exit 255
 fi
@@ -272,7 +275,8 @@ $0: message. Then install a modern shell, or manually run
 $0: the script under such a shell if you do have one."
   fi
   exit 1
-fi
+fi ;;
+esac
 fi
 fi
 SHELL=${CONFIG_SHELL-/bin/sh}
@@ -311,14 +315,6 @@ as_fn_exit ()
   as_fn_set_status $1
   exit $1
 } # as_fn_exit
-# as_fn_nop
-# ---------
-# Do nothing but, unlike ":", preserve the value of $?.
-as_fn_nop ()
-{
-  return $?
-}
-as_nop=as_fn_nop
 
 # as_fn_mkdir_p
 # -------------
@@ -387,11 +383,12 @@ then :
   {
     eval $1+=\$2
   }'
-else $as_nop
-  as_fn_append ()
+else case e in #(
+  e) as_fn_append ()
   {
     eval $1=\$$1\$2
-  }
+  } ;;
+esac
 fi # as_fn_append
 
 # as_fn_arith ARG...
@@ -405,21 +402,14 @@ then :
   {
     as_val=$(( $* ))
   }'
-else $as_nop
-  as_fn_arith ()
+else case e in #(
+  e) as_fn_arith ()
   {
     as_val=`expr "$@" || test $? -eq 1`
-  }
+  } ;;
+esac
 fi # as_fn_arith
 
-# as_fn_nop
-# ---------
-# Do nothing but, unlike ":", preserve the value of $?.
-as_fn_nop ()
-{
-  return $?
-}
-as_nop=as_fn_nop
 
 # as_fn_error STATUS ERROR [LINENO LOG_FD]
 # ----------------------------------------
@@ -493,6 +483,8 @@ as_cr_alnum=$as_cr_Letters$as_cr_digits
     /[$]LINENO/=
   ' <$as_myself |
     sed '
+      t clear
+      :clear
       s/[$]LINENO.*/&-/
       t lineno
       b
@@ -541,7 +533,6 @@ esac
 as_echo='printf %s\n'
 as_echo_n='printf %s'
 
-
 rm -f conf$$ conf$$.exe conf$$.file
 if test -d conf$$.dir; then
   rm -f conf$$.dir/conf$$.file
@@ -553,9 +544,9 @@ if (echo >conf$$.file) 2>/dev/null; then
   if ln -s conf$$.file conf$$ 2>/dev/null; then
     as_ln_s='ln -s'
     # ... but there are two gotchas:
-    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
-    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
-    # In both cases, we have to default to `cp -pR'.
+    # 1) On MSYS, both 'ln -s file dir' and 'ln file dir' fail.
+    # 2) DJGPP < 2.04 has no symlinks; 'ln -s' creates a wrapper executable.
+    # In both cases, we have to default to 'cp -pR'.
     ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
       as_ln_s='cp -pR'
   elif ln conf$$.file conf$$ 2>/dev/null; then
@@ -580,10 +571,12 @@ as_test_x='test -x'
 as_executable_p=as_fn_executable_p
 
 # Sed expression to map a string onto a valid CPP name.
-as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+as_sed_cpp="y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g"
+as_tr_cpp="eval sed '$as_sed_cpp'" # deprecated
 
 # Sed expression to map a string onto a valid variable name.
-as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+as_sed_sh="y%*+%pp%;s%[^_$as_cr_alnum]%_%g"
+as_tr_sh="eval sed '$as_sed_sh'" # deprecated
 
 
 test -n "$DJDIR" || exec 7<&0 </dev/null
@@ -969,7 +962,7 @@ do
     ac_useropt=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid feature name: \`$ac_useropt'"
+      as_fn_error $? "invalid feature name: '$ac_useropt'"
     ac_useropt_orig=$ac_useropt
     ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
@@ -995,7 +988,7 @@ do
     ac_useropt=`expr "x$ac_option" : 'x-*enable-\([^=]*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid feature name: \`$ac_useropt'"
+      as_fn_error $? "invalid feature name: '$ac_useropt'"
     ac_useropt_orig=$ac_useropt
     ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
@@ -1208,7 +1201,7 @@ do
     ac_useropt=`expr "x$ac_option" : 'x-*with-\([^=]*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid package name: \`$ac_useropt'"
+      as_fn_error $? "invalid package name: '$ac_useropt'"
     ac_useropt_orig=$ac_useropt
     ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
@@ -1224,7 +1217,7 @@ do
     ac_useropt=`expr "x$ac_option" : 'x-*without-\(.*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid package name: \`$ac_useropt'"
+      as_fn_error $? "invalid package name: '$ac_useropt'"
     ac_useropt_orig=$ac_useropt
     ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
@@ -1254,8 +1247,8 @@ do
   | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
     x_libraries=$ac_optarg ;;
 
-  -*) as_fn_error $? "unrecognized option: \`$ac_option'
-Try \`$0 --help' for more information"
+  -*) as_fn_error $? "unrecognized option: '$ac_option'
+Try '$0 --help' for more information"
     ;;
 
   *=*)
@@ -1263,7 +1256,7 @@ Try \`$0 --help' for more information"
     # Reject names that are not valid shell variable names.
     case $ac_envvar in #(
       '' | [0-9]* | *[!_$as_cr_alnum]* )
-      as_fn_error $? "invalid variable name: \`$ac_envvar'" ;;
+      as_fn_error $? "invalid variable name: '$ac_envvar'" ;;
     esac
     eval $ac_envvar=\$ac_optarg
     export $ac_envvar ;;
@@ -1313,7 +1306,7 @@ do
   as_fn_error $? "expected an absolute directory name for --$ac_var: $ac_val"
 done
 
-# There might be people who depend on the old broken behavior: `$host'
+# There might be people who depend on the old broken behavior: '$host'
 # used to hold the argument of --host etc.
 # FIXME: To remove some day.
 build=$build_alias
@@ -1381,7 +1374,7 @@ if test ! -r "$srcdir/$ac_unique_file"; then
   test "$ac_srcdir_defaulted" = yes && srcdir="$ac_confdir or .."
   as_fn_error $? "cannot find sources ($ac_unique_file) in $srcdir"
 fi
-ac_msg="sources are in $srcdir, but \`cd $srcdir' does not work"
+ac_msg="sources are in $srcdir, but 'cd $srcdir' does not work"
 ac_abs_confdir=`(
 	cd "$srcdir" && test -r "./$ac_unique_file" || as_fn_error $? "$ac_msg"
 	pwd)`
@@ -1409,7 +1402,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures ecl 24.5.10 to adapt to many kinds of systems.
+'configure' configures ecl 24.5.10 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1423,11 +1416,11 @@ Configuration:
       --help=short        display options specific to this package
       --help=recursive    display the short help of all the included packages
   -V, --version           display version information and exit
-  -q, --quiet, --silent   do not print \`checking ...' messages
+  -q, --quiet, --silent   do not print 'checking ...' messages
       --cache-file=FILE   cache test results in FILE [disabled]
-  -C, --config-cache      alias for \`--cache-file=config.cache'
+  -C, --config-cache      alias for '--cache-file=config.cache'
   -n, --no-create         do not create output files
-      --srcdir=DIR        find the sources in DIR [configure dir or \`..']
+      --srcdir=DIR        find the sources in DIR [configure dir or '..']
 
 Installation directories:
   --prefix=PREFIX         install architecture-independent files in PREFIX
@@ -1435,10 +1428,10 @@ Installation directories:
   --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
                           [PREFIX]
 
-By default, \`make install' will install all the files in
-\`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc.  You can specify
-an installation prefix other than \`$ac_default_prefix' using \`--prefix',
-for instance \`--prefix=\$HOME'.
+By default, 'make install' will install all the files in
+'$ac_default_prefix/bin', '$ac_default_prefix/lib' etc.  You can specify
+an installation prefix other than '$ac_default_prefix' using '--prefix',
+for instance '--prefix=\$HOME'.
 
 For better control, use the options below.
 
@@ -1594,7 +1587,7 @@ Some influential environment variables:
   CPP         C preprocessor
   XMKMF       Path to xmkmf, Makefile generator for X Window System
 
-Use these variables to override the choices made by `configure' or to help
+Use these variables to override the choices made by 'configure' or to help
 it to find libraries and programs with nonstandard names/locations.
 
 Report bugs to the package provider.
@@ -1662,9 +1655,9 @@ test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
 ecl configure 24.5.10
-generated by GNU Autoconf 2.71
+generated by GNU Autoconf 2.72
 
-Copyright (C) 2021 Free Software Foundation, Inc.
+Copyright (C) 2023 Free Software Foundation, Inc.
 This configure script is free software; the Free Software Foundation
 gives unlimited permission to copy, distribute and modify it.
 _ACEOF
@@ -1703,11 +1696,12 @@ printf "%s\n" "$ac_try_echo"; } >&5
        } && test -s conftest.$ac_objext
 then :
   ac_retval=0
-else $as_nop
-  printf "%s\n" "$as_me: failed program was:" >&5
+else case e in #(
+  e) printf "%s\n" "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-	ac_retval=1
+	ac_retval=1 ;;
+esac
 fi
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
   as_fn_set_status $ac_retval
@@ -1742,11 +1736,12 @@ printf "%s\n" "$ac_try_echo"; } >&5
        } && test -s conftest.$ac_objext
 then :
   ac_retval=0
-else $as_nop
-  printf "%s\n" "$as_me: failed program was:" >&5
+else case e in #(
+  e) printf "%s\n" "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-	ac_retval=1
+	ac_retval=1 ;;
+esac
 fi
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
   as_fn_set_status $ac_retval
@@ -1780,11 +1775,12 @@ printf "%s\n" "$ac_try_echo"; } >&5
        }
 then :
   ac_retval=0
-else $as_nop
-  printf "%s\n" "$as_me: failed program was:" >&5
+else case e in #(
+  e) printf "%s\n" "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-    ac_retval=1
+    ac_retval=1 ;;
+esac
 fi
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
   as_fn_set_status $ac_retval
@@ -1822,11 +1818,12 @@ printf "%s\n" "$ac_try_echo"; } >&5
        }
 then :
   ac_retval=0
-else $as_nop
-  printf "%s\n" "$as_me: failed program was:" >&5
+else case e in #(
+  e) printf "%s\n" "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-	ac_retval=1
+	ac_retval=1 ;;
+esac
 fi
   # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
   # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
@@ -1850,8 +1847,8 @@ printf %s "checking for $2... " >&6; }
 if eval test \${$3+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $4
 #include <$2>
@@ -1859,10 +1856,12 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   eval "$3=yes"
-else $as_nop
-  eval "$3=no"
+else case e in #(
+  e) eval "$3=no" ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 eval ac_res=\$$3
 	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
@@ -1882,15 +1881,15 @@ printf %s "checking for $2... " >&6; }
 if eval test \${$3+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 /* Define $2 to an innocuous variant, in case <limits.h> declares $2.
    For example, HP-UX 11i <limits.h> declares gettimeofday.  */
 #define $2 innocuous_$2
 
 /* System header to define __stub macros and hopefully few prototypes,
-   which can conflict with char $2 (); below.  */
+   which can conflict with char $2 (void); below.  */
 
 #include <limits.h>
 #undef $2
@@ -1901,7 +1900,7 @@ else $as_nop
 #ifdef __cplusplus
 extern "C"
 #endif
-char $2 ();
+char $2 (void);
 /* The GNU C library defines this for functions which it implements
     to always fail with ENOSYS.  Some functions are actually named
     something starting with __ and the normal name is an alias.  */
@@ -1920,11 +1919,13 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   eval "$3=yes"
-else $as_nop
-  eval "$3=no"
+else case e in #(
+  e) eval "$3=no" ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
-    conftest$ac_exeext conftest.$ac_ext
+    conftest$ac_exeext conftest.$ac_ext ;;
+esac
 fi
 eval ac_res=\$$3
 	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
@@ -1945,8 +1946,8 @@ printf %s "checking for $2... " >&6; }
 if eval test \${$3+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  eval "$3=no"
+else case e in #(
+  e) eval "$3=no"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $4
@@ -1976,12 +1977,14 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
 
-else $as_nop
-  eval "$3=yes"
+else case e in #(
+  e) eval "$3=yes" ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 eval ac_res=\$$3
 	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
@@ -2020,12 +2023,13 @@ printf "%s\n" "$ac_try_echo"; } >&5
   test $ac_status = 0; }; }
 then :
   ac_retval=0
-else $as_nop
-  printf "%s\n" "$as_me: program exited with status $ac_status" >&5
+else case e in #(
+  e) printf "%s\n" "$as_me: program exited with status $ac_status" >&5
        printf "%s\n" "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-       ac_retval=$ac_status
+       ac_retval=$ac_status ;;
+esac
 fi
   rm -rf conftest.dSYM conftest_ipa8_conftest.oo
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
@@ -2045,8 +2049,8 @@ printf %s "checking for int$2_t... " >&6; }
 if eval test \${$3+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  eval "$3=no"
+else case e in #(
+  e) eval "$3=no"
      # Order is important - never check a type that is potentially smaller
      # than half of the expected target width.
      for ac_type in int$2_t 'int' 'long int' \
@@ -2087,12 +2091,13 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
 
-else $as_nop
-  case $ac_type in #(
+else case e in #(
+  e) case $ac_type in #(
   int$2_t) :
     eval "$3=yes" ;; #(
   *) :
     eval "$3=\$ac_type" ;;
+esac ;;
 esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
@@ -2101,10 +2106,12 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
        if eval test \"x\$"$3"\" = x"no"
 then :
 
-else $as_nop
-  break
+else case e in #(
+  e) break ;;
+esac
 fi
-     done
+     done ;;
+esac
 fi
 eval ac_res=\$$3
 	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
@@ -2125,8 +2132,8 @@ printf %s "checking for uint$2_t... " >&6; }
 if eval test \${$3+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  eval "$3=no"
+else case e in #(
+  e) eval "$3=no"
      # Order is important - never check a type that is potentially smaller
      # than half of the expected target width.
      for ac_type in uint$2_t 'unsigned int' 'unsigned long int' \
@@ -2158,10 +2165,12 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
        if eval test \"x\$"$3"\" = x"no"
 then :
 
-else $as_nop
-  break
+else case e in #(
+  e) break ;;
+esac
 fi
-     done
+     done ;;
+esac
 fi
 eval ac_res=\$$3
 	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
@@ -2183,8 +2192,8 @@ printf %s "checking whether $as_decl_name is declared... " >&6; }
 if eval test \${$3+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  as_decl_use=`echo $2|sed -e 's/(/((/' -e 's/)/) 0&/' -e 's/,/) 0& (/g'`
+else case e in #(
+  e) as_decl_use=`echo $2|sed -e 's/(/((/' -e 's/)/) 0&/' -e 's/,/) 0& (/g'`
   eval ac_save_FLAGS=\$$6
   as_fn_append $6 " $5"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -2208,12 +2217,14 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   eval "$3=yes"
-else $as_nop
-  eval "$3=no"
+else case e in #(
+  e) eval "$3=no" ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
   eval $6=\$ac_save_FLAGS
-
+ ;;
+esac
 fi
 eval ac_res=\$$3
 	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
@@ -2246,7 +2257,7 @@ This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
 It was created by ecl $as_me 24.5.10, which was
-generated by GNU Autoconf 2.71.  Invocation command line was
+generated by GNU Autoconf 2.72.  Invocation command line was
 
   $ $0$ac_configure_args_raw
 
@@ -2492,10 +2503,10 @@ esac
 printf "%s\n" "$as_me: loading site script $ac_site_file" >&6;}
     sed 's/^/| /' "$ac_site_file" >&5
     . "$ac_site_file" \
-      || { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+      || { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "failed to load site script $ac_site_file
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
   fi
 done
 
@@ -2531,9 +2542,7 @@ struct stat;
 /* Most of the following tests are stolen from RCS 5.7 src/conf.sh.  */
 struct buf { int x; };
 struct buf * (*rcsopen) (struct buf *, struct stat *, int);
-static char *e (p, i)
-     char **p;
-     int i;
+static char *e (char **p, int i)
 {
   return p[i];
 }
@@ -2547,6 +2556,21 @@ static char *f (char * (*g) (char **, int), char **p, ...)
   return s;
 }
 
+/* C89 style stringification. */
+#define noexpand_stringify(a) #a
+const char *stringified = noexpand_stringify(arbitrary+token=sequence);
+
+/* C89 style token pasting.  Exercises some of the corner cases that
+   e.g. old MSVC gets wrong, but not very hard. */
+#define noexpand_concat(a,b) a##b
+#define expand_concat(a,b) noexpand_concat(a,b)
+extern int vA;
+extern int vbee;
+#define aye A
+#define bee B
+int *pvA = &expand_concat(v,aye);
+int *pvbee = &noexpand_concat(v,bee);
+
 /* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
    function prototypes and stuff, but not \xHH hex character constants.
    These do not provoke an error unfortunately, instead are silently treated
@@ -2574,16 +2598,19 @@ ok |= (argc == 0 || f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]);
 
 # Test code for whether the C compiler supports C99 (global declarations)
 ac_c_conftest_c99_globals='
-// Does the compiler advertise C99 conformance?
+/* Does the compiler advertise C99 conformance? */
 #if !defined __STDC_VERSION__ || __STDC_VERSION__ < 199901L
 # error "Compiler does not advertise C99 conformance"
 #endif
 
+// See if C++-style comments work.
+
 #include <stdbool.h>
 extern int puts (const char *);
 extern int printf (const char *, ...);
 extern int dprintf (int, const char *, ...);
 extern void *malloc (size_t);
+extern void free (void *);
 
 // Check varargs macros.  These examples are taken from C99 6.10.3.5.
 // dprintf is used instead of fprintf to avoid needing to declare
@@ -2633,7 +2660,6 @@ typedef const char *ccp;
 static inline int
 test_restrict (ccp restrict text)
 {
-  // See if C++-style comments work.
   // Iterate through items via the restricted pointer.
   // Also check for declarations in for loops.
   for (unsigned int i = 0; *(text+i) != '\''\0'\''; ++i)
@@ -2699,6 +2725,8 @@ ac_c_conftest_c99_main='
   ia->datasize = 10;
   for (int i = 0; i < ia->datasize; ++i)
     ia->data[i] = i * 1.234;
+  // Work around memory leak warnings.
+  free (ia);
 
   // Check named initializers.
   struct named_init ni = {
@@ -2720,7 +2748,7 @@ ac_c_conftest_c99_main='
 
 # Test code for whether the C compiler supports C11 (global declarations)
 ac_c_conftest_c11_globals='
-// Does the compiler advertise C11 conformance?
+/* Does the compiler advertise C11 conformance? */
 #if !defined __STDC_VERSION__ || __STDC_VERSION__ < 201112L
 # error "Compiler does not advertise C11 conformance"
 #endif
@@ -3136,8 +3164,9 @@ IFS=$as_save_IFS
 if $as_found
 then :
 
-else $as_nop
-  as_fn_error $? "cannot find required auxiliary files:$ac_missing_aux_files" "$LINENO" 5
+else case e in #(
+  e) as_fn_error $? "cannot find required auxiliary files:$ac_missing_aux_files" "$LINENO" 5 ;;
+esac
 fi
 
 
@@ -3165,12 +3194,12 @@ for ac_var in $ac_precious_vars; do
   eval ac_new_val=\$ac_env_${ac_var}_value
   case $ac_old_set,$ac_new_set in
     set,)
-      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
-printf "%s\n" "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: '$ac_var' was set to '$ac_old_val' in the previous run" >&5
+printf "%s\n" "$as_me: error: '$ac_var' was set to '$ac_old_val' in the previous run" >&2;}
       ac_cache_corrupted=: ;;
     ,set)
-      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was not set in the previous run" >&5
-printf "%s\n" "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: '$ac_var' was not set in the previous run" >&5
+printf "%s\n" "$as_me: error: '$ac_var' was not set in the previous run" >&2;}
       ac_cache_corrupted=: ;;
     ,);;
     *)
@@ -3179,18 +3208,18 @@ printf "%s\n" "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
 	ac_old_val_w=`echo x $ac_old_val`
 	ac_new_val_w=`echo x $ac_new_val`
 	if test "$ac_old_val_w" != "$ac_new_val_w"; then
-	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' has changed since the previous run:" >&5
-printf "%s\n" "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
+	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: '$ac_var' has changed since the previous run:" >&5
+printf "%s\n" "$as_me: error: '$ac_var' has changed since the previous run:" >&2;}
 	  ac_cache_corrupted=:
 	else
-	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5
-printf "%s\n" "$as_me: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&2;}
+	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in '$ac_var' since the previous run:" >&5
+printf "%s\n" "$as_me: warning: ignoring whitespace changes in '$ac_var' since the previous run:" >&2;}
 	  eval $ac_var=\$ac_old_val
 	fi
-	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}:   former value:  \`$ac_old_val'" >&5
-printf "%s\n" "$as_me:   former value:  \`$ac_old_val'" >&2;}
-	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}:   current value: \`$ac_new_val'" >&5
-printf "%s\n" "$as_me:   current value: \`$ac_new_val'" >&2;}
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}:   former value:  '$ac_old_val'" >&5
+printf "%s\n" "$as_me:   former value:  '$ac_old_val'" >&2;}
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}:   current value: '$ac_new_val'" >&5
+printf "%s\n" "$as_me:   current value: '$ac_new_val'" >&2;}
       fi;;
   esac
   # Pass precious variables to config.status.
@@ -3206,11 +3235,11 @@ printf "%s\n" "$as_me:   current value: \`$ac_new_val'" >&2;}
   fi
 done
 if $ac_cache_corrupted; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5
 printf "%s\n" "$as_me: error: changes in the environment can compromise the build" >&2;}
-  as_fn_error $? "run \`${MAKE-make} distclean' and/or \`rm $cache_file'
+  as_fn_error $? "run '${MAKE-make} distclean' and/or 'rm $cache_file'
 	    and start over" "$LINENO" 5
 fi
 ## -------------------- ##
@@ -3239,8 +3268,9 @@ fi
 if test ${with_cross_config+y}
 then :
   withval=$with_cross_config;
-else $as_nop
-  with_cross_config="`pwd`/cross_config"
+else case e in #(
+  e) with_cross_config="`pwd`/cross_config" ;;
+esac
 fi
 
 
@@ -3248,8 +3278,9 @@ fi
 if test ${enable_shared+y}
 then :
   enableval=$enable_shared;
-else $as_nop
-  enable_shared=yes
+else case e in #(
+  e) enable_shared=yes ;;
+esac
 fi
 
 
@@ -3257,8 +3288,9 @@ fi
 if test ${enable_rpath+y}
 then :
   enableval=$enable_rpath;
-else $as_nop
-  enable_rpath=yes
+else case e in #(
+  e) enable_rpath=yes  ;;
+esac
 fi
 
 
@@ -3266,8 +3298,9 @@ fi
 if test ${enable_threads+y}
 then :
   enableval=$enable_threads;
-else $as_nop
-  enable_threads=auto
+else case e in #(
+  e) enable_threads=auto ;;
+esac
 fi
 
 
@@ -3275,8 +3308,9 @@ fi
 if test ${enable_boehm+y}
 then :
   enableval=$enable_boehm;
-else $as_nop
-  enable_boehm=auto
+else case e in #(
+  e) enable_boehm=auto  ;;
+esac
 fi
 
 
@@ -3284,8 +3318,9 @@ fi
 if test ${enable_libatomic+y}
 then :
   enableval=$enable_libatomic;
-else $as_nop
-  enable_libatomic=auto
+else case e in #(
+  e) enable_libatomic=auto  ;;
+esac
 fi
 
 
@@ -3293,8 +3328,9 @@ fi
 if test ${enable_soname+y}
 then :
   enableval=$enable_soname;
-else $as_nop
-  enable_soname=yes
+else case e in #(
+  e) enable_soname=yes  ;;
+esac
 fi
 
 
@@ -3302,8 +3338,9 @@ fi
 if test ${enable_gmp+y}
 then :
   enableval=$enable_gmp;
-else $as_nop
-  enable_gmp=auto
+else case e in #(
+  e) enable_gmp=auto  ;;
+esac
 fi
 
 
@@ -3312,8 +3349,9 @@ fi
 if test ${with_C_gmp+y}
 then :
   withval=$with_C_gmp; with_c_gmp=yes; with_system_gmp=no
-else $as_nop
-  with_c_gmp=no
+else case e in #(
+  e) with_c_gmp=no ;;
+esac
 fi
 
 
@@ -3322,8 +3360,9 @@ fi
 if test ${with_system_gmp+y}
 then :
   withval=$with_system_gmp;
-else $as_nop
-  with_system_gmp="auto"
+else case e in #(
+  e) with_system_gmp="auto" ;;
+esac
 fi
 
 
@@ -3332,8 +3371,9 @@ fi
 if test ${with_gmp+y}
 then :
   withval=$with_gmp;
-else $as_nop
-  with_gmp_args=""
+else case e in #(
+  e) with_gmp_args="" ;;
+esac
 fi
 
 
@@ -3342,8 +3382,9 @@ fi
 if test ${with_gmp_args+y}
 then :
   withval=$with_gmp_args;
-else $as_nop
-  with_gmp_args=""
+else case e in #(
+  e) with_gmp_args="" ;;
+esac
 fi
 
 
@@ -3424,8 +3465,9 @@ fi
 if test ${with_cxx+y}
 then :
   withval=$with_cxx;
-else $as_nop
-  with_cxx=no
+else case e in #(
+  e) with_cxx=no ;;
+esac
 fi
 
 
@@ -3434,8 +3476,9 @@ fi
 if test ${with_tcp+y}
 then :
   withval=$with_tcp;
-else $as_nop
-  with_tcp=yes
+else case e in #(
+  e) with_tcp=yes ;;
+esac
 fi
 
 
@@ -3444,8 +3487,9 @@ fi
 if test ${with_serve_event+y}
 then :
   withval=$with_serve_event;
-else $as_nop
-  with_serve_event=${enable_shared}
+else case e in #(
+  e) with_serve_event=${enable_shared} ;;
+esac
 fi
 
 
@@ -3454,8 +3498,9 @@ fi
 if test ${with_clos_streams+y}
 then :
   withval=$with_clos_streams;
-else $as_nop
-  with_clos_streams=yes
+else case e in #(
+  e) with_clos_streams=yes ;;
+esac
 fi
 
 
@@ -3464,8 +3509,9 @@ fi
 if test ${with_cmuformat+y}
 then :
   withval=$with_cmuformat;
-else $as_nop
-  with_cmuformat=${with_clos_streams}
+else case e in #(
+  e) with_cmuformat=${with_clos_streams} ;;
+esac
 fi
 
 
@@ -3474,8 +3520,9 @@ fi
 if test ${with_asdf+y}
 then :
   withval=$with_asdf;
-else $as_nop
-  with_asdf=yes
+else case e in #(
+  e) with_asdf=yes ;;
+esac
 fi
 
 
@@ -3484,8 +3531,9 @@ fi
 if test ${with_defsystem+y}
 then :
   withval=$with_defsystem;
-else $as_nop
-  with_defsystem=no
+else case e in #(
+  e) with_defsystem=no ;;
+esac
 fi
 
 
@@ -3494,8 +3542,9 @@ fi
 if test ${with_cmp+y}
 then :
   withval=$with_cmp;
-else $as_nop
-  with_cmp=yes
+else case e in #(
+  e) with_cmp=yes ;;
+esac
 fi
 
 
@@ -3504,8 +3553,9 @@ fi
 if test ${with_bytecmp+y}
 then :
   withval=$with_bytecmp;
-else $as_nop
-  with_bytecmp=yes
+else case e in #(
+  e) with_bytecmp=yes ;;
+esac
 fi
 
 
@@ -3514,8 +3564,9 @@ fi
 if test ${with_rt+y}
 then :
   withval=$with_rt;
-else $as_nop
-  with_rt=no
+else case e in #(
+  e) with_rt=no ;;
+esac
 fi
 
 
@@ -3524,8 +3575,9 @@ fi
 if test ${with_profile+y}
 then :
   withval=$with_profile;
-else $as_nop
-  with_profile=no
+else case e in #(
+  e) with_profile=no ;;
+esac
 fi
 
 
@@ -3534,8 +3586,9 @@ fi
 if test ${with_dffi+y}
 then :
   withval=$with_dffi; enable_libffi=${withval}
-else $as_nop
-  enable_libffi=auto
+else case e in #(
+  e) enable_libffi=auto ;;
+esac
 fi
 
 
@@ -3544,8 +3597,9 @@ fi
 if test ${with_fpe+y}
 then :
   withval=$with_fpe;
-else $as_nop
-  with_fpe=yes
+else case e in #(
+  e) with_fpe=yes ;;
+esac
 fi
 
 
@@ -3554,8 +3608,9 @@ fi
 if test ${with_signed_zero+y}
 then :
   withval=$with_signed_zero;
-else $as_nop
-  with_signed_zero="yes"
+else case e in #(
+  e) with_signed_zero="yes" ;;
+esac
 fi
 
 
@@ -3564,8 +3619,9 @@ fi
 if test ${with_ieee_fp+y}
 then :
   withval=$with_ieee_fp;
-else $as_nop
-  with_ieee_fp="yes"
+else case e in #(
+  e) with_ieee_fp="yes" ;;
+esac
 fi
 
 
@@ -3574,8 +3630,9 @@ fi
 if test ${with_sse+y}
 then :
   withval=$with_sse;
-else $as_nop
-  with_sse="no"
+else case e in #(
+  e) with_sse="no" ;;
+esac
 fi
 
 
@@ -3583,8 +3640,9 @@ fi
 if test ${enable_unicode+y}
 then :
   enableval=$enable_unicode;
-else $as_nop
-  enable_unicode=32
+else case e in #(
+  e) enable_unicode=32 ;;
+esac
 fi
 
 
@@ -3592,8 +3650,9 @@ fi
 if test ${enable_c99complex+y}
 then :
   enableval=$enable_c99complex; enable_c99complex=${enableval}
-else $as_nop
-  enable_c99complex=auto
+else case e in #(
+  e) enable_c99complex=auto ;;
+esac
 fi
 
 
@@ -3601,8 +3660,9 @@ fi
 if test ${enable_smallcons+y}
 then :
   enableval=$enable_smallcons; enable_smallcons=${enableval}
-else $as_nop
-  enable_smallcons=yes
+else case e in #(
+  e) enable_smallcons=yes ;;
+esac
 fi
 
 
@@ -3610,8 +3670,9 @@ fi
 if test ${enable_gengc+y}
 then :
   enableval=$enable_gengc; enable_gengc=${enableval}
-else $as_nop
-  enable_gengc=no
+else case e in #(
+  e) enable_gengc=no  ;;
+esac
 fi
 
 
@@ -3619,8 +3680,9 @@ fi
 if test ${enable_precisegc+y}
 then :
   enableval=$enable_precisegc; enable_precisegc=${enableval}
-else $as_nop
-  enable_precisegc=no
+else case e in #(
+  e) enable_precisegc=no  ;;
+esac
 fi
 
 
@@ -3628,8 +3690,9 @@ fi
 if test ${enable_serialization+y}
 then :
   enableval=$enable_serialization;
-else $as_nop
-  enable_serialization=no
+else case e in #(
+  e) enable_serialization=no  ;;
+esac
 fi
 
 
@@ -3645,8 +3708,9 @@ fi
 if test ${with_debug_cflags+y}
 then :
   withval=$with_debug_cflags;
-else $as_nop
-  with_debug_cflags="no"
+else case e in #(
+  e) with_debug_cflags="no" ;;
+esac
 fi
 
 
@@ -3655,8 +3719,9 @@ fi
 if test ${with_profile_cflags+y}
 then :
   withval=$with_profile_cflags;
-else $as_nop
-  with_profile_cflags="no"
+else case e in #(
+  e) with_profile_cflags="no" ;;
+esac
 fi
 
 
@@ -3665,8 +3730,9 @@ fi
 if test ${with_extra_files+y}
 then :
   withval=$with_extra_files; with_extra_files="${withval}"
-else $as_nop
-  with_extra_files=""
+else case e in #(
+  e) with_extra_files="" ;;
+esac
 fi
 
 
@@ -3675,8 +3741,9 @@ fi
 if test ${with_init_form+y}
 then :
   withval=$with_init_form; with_init_form="${withval}"
-else $as_nop
-  with_init_form=""
+else case e in #(
+  e) with_init_form="" ;;
+esac
 fi
 
 
@@ -3684,8 +3751,9 @@ fi
 if test ${enable_manual+y}
 then :
   enableval=$enable_manual; enable_manual=${enableval}
-else $as_nop
-  enable_manual=auto
+else case e in #(
+  e) enable_manual=auto ;;
+esac
 fi
 
 
@@ -3714,15 +3782,16 @@ printf %s "checking build system type... " >&6; }
 if test ${ac_cv_build+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_build_alias=$build_alias
+else case e in #(
+  e) ac_build_alias=$build_alias
 test "x$ac_build_alias" = x &&
   ac_build_alias=`$SHELL "${ac_aux_dir}config.guess"`
 test "x$ac_build_alias" = x &&
   as_fn_error $? "cannot guess build type; you must specify one" "$LINENO" 5
 ac_cv_build=`$SHELL "${ac_aux_dir}config.sub" $ac_build_alias` ||
   as_fn_error $? "$SHELL ${ac_aux_dir}config.sub $ac_build_alias failed" "$LINENO" 5
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build" >&5
 printf "%s\n" "$ac_cv_build" >&6; }
@@ -3749,14 +3818,15 @@ printf %s "checking host system type... " >&6; }
 if test ${ac_cv_host+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test "x$host_alias" = x; then
+else case e in #(
+  e) if test "x$host_alias" = x; then
   ac_cv_host=$ac_cv_build
 else
   ac_cv_host=`$SHELL "${ac_aux_dir}config.sub" $host_alias` ||
     as_fn_error $? "$SHELL ${ac_aux_dir}config.sub $host_alias failed" "$LINENO" 5
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_host" >&5
 printf "%s\n" "$ac_cv_host" >&6; }
@@ -3802,8 +3872,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$CC"; then
+else case e in #(
+  e) if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -3825,7 +3895,8 @@ done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
@@ -3847,8 +3918,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_CC"; then
+else case e in #(
+  e) if test -n "$ac_ct_CC"; then
   ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -3870,7 +3941,8 @@ done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_CC=$ac_cv_prog_ac_ct_CC
 if test -n "$ac_ct_CC"; then
@@ -3905,8 +3977,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$CC"; then
+else case e in #(
+  e) if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -3928,7 +4000,8 @@ done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
@@ -3950,8 +4023,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$CC"; then
+else case e in #(
+  e) if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
   ac_prog_rejected=no
@@ -3990,7 +4063,8 @@ if test $ac_prog_rejected = yes; then
     ac_cv_prog_CC="$as_dir$ac_word${1+' '}$@"
   fi
 fi
-fi
+fi ;;
+esac
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
@@ -4014,8 +4088,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$CC"; then
+else case e in #(
+  e) if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -4037,7 +4111,8 @@ done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
@@ -4063,8 +4138,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_CC"; then
+else case e in #(
+  e) if test -n "$ac_ct_CC"; then
   ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -4086,7 +4161,8 @@ done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_CC=$ac_cv_prog_ac_ct_CC
 if test -n "$ac_ct_CC"; then
@@ -4124,8 +4200,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$CC"; then
+else case e in #(
+  e) if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -4147,7 +4223,8 @@ done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
@@ -4169,8 +4246,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_CC"; then
+else case e in #(
+  e) if test -n "$ac_ct_CC"; then
   ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -4192,7 +4269,8 @@ done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_CC=$ac_cv_prog_ac_ct_CC
 if test -n "$ac_ct_CC"; then
@@ -4221,10 +4299,10 @@ fi
 fi
 
 
-test -z "$CC" && { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+test -z "$CC" && { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "no acceptable C compiler found in \$PATH
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
 
 # Provide some information about the compiler.
 printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
@@ -4296,8 +4374,8 @@ printf "%s\n" "$ac_try_echo"; } >&5
   printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }
 then :
-  # Autoconf-2.13 could set the ac_cv_exeext variable to `no'.
-# So ignore a value of `no', otherwise this would lead to `EXEEXT = no'
+  # Autoconf-2.13 could set the ac_cv_exeext variable to 'no'.
+# So ignore a value of 'no', otherwise this would lead to 'EXEEXT = no'
 # in a Makefile.  We should not override ac_cv_exeext if it was cached,
 # so that the user can short-circuit this test for compilers unknown to
 # Autoconf.
@@ -4317,7 +4395,7 @@ do
 	   ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
 	fi
 	# We set ac_cv_exeext here because the later test for it is not
-	# safe: cross compilers may not add the suffix if given an `-o'
+	# safe: cross compilers may not add the suffix if given an '-o'
 	# argument, so we may need to know it at that point already.
 	# Even if this section looks crufty: it has the advantage of
 	# actually working.
@@ -4328,8 +4406,9 @@ do
 done
 test "$ac_cv_exeext" = no && ac_cv_exeext=
 
-else $as_nop
-  ac_file=''
+else case e in #(
+  e) ac_file='' ;;
+esac
 fi
 if test -z "$ac_file"
 then :
@@ -4338,13 +4417,14 @@ printf "%s\n" "no" >&6; }
 printf "%s\n" "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error 77 "C compiler cannot create executables
-See \`config.log' for more details" "$LINENO" 5; }
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-printf "%s\n" "yes" >&6; }
+See 'config.log' for more details" "$LINENO" 5; }
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; } ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5
 printf %s "checking for C compiler default output file name... " >&6; }
@@ -4368,10 +4448,10 @@ printf "%s\n" "$ac_try_echo"; } >&5
   printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }
 then :
-  # If both `conftest.exe' and `conftest' are `present' (well, observable)
-# catch `conftest.exe'.  For instance with Cygwin, `ls conftest' will
-# work properly (i.e., refer to `conftest.exe'), while it won't with
-# `rm'.
+  # If both 'conftest.exe' and 'conftest' are 'present' (well, observable)
+# catch 'conftest.exe'.  For instance with Cygwin, 'ls conftest' will
+# work properly (i.e., refer to 'conftest.exe'), while it won't with
+# 'rm'.
 for ac_file in conftest.exe conftest conftest.*; do
   test -f "$ac_file" || continue
   case $ac_file in
@@ -4381,11 +4461,12 @@ for ac_file in conftest.exe conftest conftest.*; do
     * ) break;;
   esac
 done
-else $as_nop
-  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+else case e in #(
+  e) { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "cannot compute suffix of executables: cannot compile and link
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; } ;;
+esac
 fi
 rm -f conftest conftest$ac_cv_exeext
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5
@@ -4401,6 +4482,8 @@ int
 main (void)
 {
 FILE *f = fopen ("conftest.out", "w");
+ if (!f)
+  return 1;
  return ferror (f) || fclose (f) != 0;
 
   ;
@@ -4440,26 +4523,27 @@ printf "%s\n" "$ac_try_echo"; } >&5
     if test "$cross_compiling" = maybe; then
 	cross_compiling=yes
     else
-	{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+	{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error 77 "cannot run C compiled programs.
-If you meant to cross compile, use \`--host'.
-See \`config.log' for more details" "$LINENO" 5; }
+If you meant to cross compile, use '--host'.
+See 'config.log' for more details" "$LINENO" 5; }
     fi
   fi
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5
 printf "%s\n" "$cross_compiling" >&6; }
 
-rm -f conftest.$ac_ext conftest$ac_cv_exeext conftest.out
+rm -f conftest.$ac_ext conftest$ac_cv_exeext \
+  conftest.o conftest.obj conftest.out
 ac_clean_files=$ac_clean_files_save
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5
 printf %s "checking for suffix of object files... " >&6; }
 if test ${ac_cv_objext+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -4491,16 +4575,18 @@ then :
        break;;
   esac
 done
-else $as_nop
-  printf "%s\n" "$as_me: failed program was:" >&5
+else case e in #(
+  e) printf "%s\n" "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "cannot compute suffix of object files: cannot compile
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; } ;;
+esac
 fi
-rm -f conftest.$ac_cv_objext conftest.$ac_ext
+rm -f conftest.$ac_cv_objext conftest.$ac_ext ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5
 printf "%s\n" "$ac_cv_objext" >&6; }
@@ -4511,8 +4597,8 @@ printf %s "checking whether the compiler supports GNU C... " >&6; }
 if test ${ac_cv_c_compiler_gnu+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -4529,12 +4615,14 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_compiler_gnu=yes
-else $as_nop
-  ac_compiler_gnu=no
+else case e in #(
+  e) ac_compiler_gnu=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 ac_cv_c_compiler_gnu=$ac_compiler_gnu
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
 printf "%s\n" "$ac_cv_c_compiler_gnu" >&6; }
@@ -4552,8 +4640,8 @@ printf %s "checking whether $CC accepts -g... " >&6; }
 if test ${ac_cv_prog_cc_g+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_save_c_werror_flag=$ac_c_werror_flag
+else case e in #(
+  e) ac_save_c_werror_flag=$ac_c_werror_flag
    ac_c_werror_flag=yes
    ac_cv_prog_cc_g=no
    CFLAGS="-g"
@@ -4571,8 +4659,8 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_cv_prog_cc_g=yes
-else $as_nop
-  CFLAGS=""
+else case e in #(
+  e) CFLAGS=""
       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -4587,8 +4675,8 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
 
-else $as_nop
-  ac_c_werror_flag=$ac_save_c_werror_flag
+else case e in #(
+  e) ac_c_werror_flag=$ac_save_c_werror_flag
 	 CFLAGS="-g"
 	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -4605,12 +4693,15 @@ if ac_fn_c_try_compile "$LINENO"
 then :
   ac_cv_prog_cc_g=yes
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-   ac_c_werror_flag=$ac_save_c_werror_flag
+   ac_c_werror_flag=$ac_save_c_werror_flag ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
 printf "%s\n" "$ac_cv_prog_cc_g" >&6; }
@@ -4637,8 +4728,8 @@ printf %s "checking for $CC option to enable C11 features... " >&6; }
 if test ${ac_cv_prog_cc_c11+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_cv_prog_cc_c11=no
+else case e in #(
+  e) ac_cv_prog_cc_c11=no
 ac_save_CC=$CC
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -4655,25 +4746,28 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam
   test "x$ac_cv_prog_cc_c11" != "xno" && break
 done
 rm -f conftest.$ac_ext
-CC=$ac_save_CC
+CC=$ac_save_CC ;;
+esac
 fi
 
 if test "x$ac_cv_prog_cc_c11" = xno
 then :
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
 printf "%s\n" "unsupported" >&6; }
-else $as_nop
-  if test "x$ac_cv_prog_cc_c11" = x
+else case e in #(
+  e) if test "x$ac_cv_prog_cc_c11" = x
 then :
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
 printf "%s\n" "none needed" >&6; }
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c11" >&5
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c11" >&5
 printf "%s\n" "$ac_cv_prog_cc_c11" >&6; }
-     CC="$CC $ac_cv_prog_cc_c11"
+     CC="$CC $ac_cv_prog_cc_c11" ;;
+esac
 fi
   ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c11
-  ac_prog_cc_stdc=c11
+  ac_prog_cc_stdc=c11 ;;
+esac
 fi
 fi
 if test x$ac_prog_cc_stdc = xno
@@ -4683,8 +4777,8 @@ printf %s "checking for $CC option to enable C99 features... " >&6; }
 if test ${ac_cv_prog_cc_c99+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_cv_prog_cc_c99=no
+else case e in #(
+  e) ac_cv_prog_cc_c99=no
 ac_save_CC=$CC
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -4701,25 +4795,28 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam
   test "x$ac_cv_prog_cc_c99" != "xno" && break
 done
 rm -f conftest.$ac_ext
-CC=$ac_save_CC
+CC=$ac_save_CC ;;
+esac
 fi
 
 if test "x$ac_cv_prog_cc_c99" = xno
 then :
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
 printf "%s\n" "unsupported" >&6; }
-else $as_nop
-  if test "x$ac_cv_prog_cc_c99" = x
+else case e in #(
+  e) if test "x$ac_cv_prog_cc_c99" = x
 then :
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
 printf "%s\n" "none needed" >&6; }
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c99" >&5
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c99" >&5
 printf "%s\n" "$ac_cv_prog_cc_c99" >&6; }
-     CC="$CC $ac_cv_prog_cc_c99"
+     CC="$CC $ac_cv_prog_cc_c99" ;;
+esac
 fi
   ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c99
-  ac_prog_cc_stdc=c99
+  ac_prog_cc_stdc=c99 ;;
+esac
 fi
 fi
 if test x$ac_prog_cc_stdc = xno
@@ -4729,8 +4826,8 @@ printf %s "checking for $CC option to enable C89 features... " >&6; }
 if test ${ac_cv_prog_cc_c89+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_cv_prog_cc_c89=no
+else case e in #(
+  e) ac_cv_prog_cc_c89=no
 ac_save_CC=$CC
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -4747,25 +4844,28 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam
   test "x$ac_cv_prog_cc_c89" != "xno" && break
 done
 rm -f conftest.$ac_ext
-CC=$ac_save_CC
+CC=$ac_save_CC ;;
+esac
 fi
 
 if test "x$ac_cv_prog_cc_c89" = xno
 then :
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
 printf "%s\n" "unsupported" >&6; }
-else $as_nop
-  if test "x$ac_cv_prog_cc_c89" = x
+else case e in #(
+  e) if test "x$ac_cv_prog_cc_c89" = x
 then :
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
 printf "%s\n" "none needed" >&6; }
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
 printf "%s\n" "$ac_cv_prog_cc_c89" >&6; }
-     CC="$CC $ac_cv_prog_cc_c89"
+     CC="$CC $ac_cv_prog_cc_c89" ;;
+esac
 fi
   ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c89
-  ac_prog_cc_stdc=c89
+  ac_prog_cc_stdc=c89 ;;
+esac
 fi
 fi
 
@@ -4802,8 +4902,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_CXX+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$CXX"; then
+else case e in #(
+  e) if test -n "$CXX"; then
   ac_cv_prog_CXX="$CXX" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -4825,7 +4925,8 @@ done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 CXX=$ac_cv_prog_CXX
 if test -n "$CXX"; then
@@ -4851,8 +4952,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_CXX+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_CXX"; then
+else case e in #(
+  e) if test -n "$ac_ct_CXX"; then
   ac_cv_prog_ac_ct_CXX="$ac_ct_CXX" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -4874,7 +4975,8 @@ done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_CXX=$ac_cv_prog_ac_ct_CXX
 if test -n "$ac_ct_CXX"; then
@@ -4934,8 +5036,8 @@ printf %s "checking whether the compiler supports GNU C++... " >&6; }
 if test ${ac_cv_cxx_compiler_gnu+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -4952,12 +5054,14 @@ _ACEOF
 if ac_fn_cxx_try_compile "$LINENO"
 then :
   ac_compiler_gnu=yes
-else $as_nop
-  ac_compiler_gnu=no
+else case e in #(
+  e) ac_compiler_gnu=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 ac_cv_cxx_compiler_gnu=$ac_compiler_gnu
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cxx_compiler_gnu" >&5
 printf "%s\n" "$ac_cv_cxx_compiler_gnu" >&6; }
@@ -4975,8 +5079,8 @@ printf %s "checking whether $CXX accepts -g... " >&6; }
 if test ${ac_cv_prog_cxx_g+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_save_cxx_werror_flag=$ac_cxx_werror_flag
+else case e in #(
+  e) ac_save_cxx_werror_flag=$ac_cxx_werror_flag
    ac_cxx_werror_flag=yes
    ac_cv_prog_cxx_g=no
    CXXFLAGS="-g"
@@ -4994,8 +5098,8 @@ _ACEOF
 if ac_fn_cxx_try_compile "$LINENO"
 then :
   ac_cv_prog_cxx_g=yes
-else $as_nop
-  CXXFLAGS=""
+else case e in #(
+  e) CXXFLAGS=""
       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -5010,8 +5114,8 @@ _ACEOF
 if ac_fn_cxx_try_compile "$LINENO"
 then :
 
-else $as_nop
-  ac_cxx_werror_flag=$ac_save_cxx_werror_flag
+else case e in #(
+  e) ac_cxx_werror_flag=$ac_save_cxx_werror_flag
 	 CXXFLAGS="-g"
 	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -5028,12 +5132,15 @@ if ac_fn_cxx_try_compile "$LINENO"
 then :
   ac_cv_prog_cxx_g=yes
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-   ac_cxx_werror_flag=$ac_save_cxx_werror_flag
+   ac_cxx_werror_flag=$ac_save_cxx_werror_flag ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_g" >&5
 printf "%s\n" "$ac_cv_prog_cxx_g" >&6; }
@@ -5060,8 +5167,8 @@ printf %s "checking for $CXX option to enable C++11 features... " >&6; }
 if test ${ac_cv_prog_cxx_cxx11+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_cv_prog_cxx_cxx11=no
+else case e in #(
+  e) ac_cv_prog_cxx_cxx11=no
 ac_save_CXX=$CXX
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -5078,25 +5185,28 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam
   test "x$ac_cv_prog_cxx_cxx11" != "xno" && break
 done
 rm -f conftest.$ac_ext
-CXX=$ac_save_CXX
+CXX=$ac_save_CXX ;;
+esac
 fi
 
 if test "x$ac_cv_prog_cxx_cxx11" = xno
 then :
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
 printf "%s\n" "unsupported" >&6; }
-else $as_nop
-  if test "x$ac_cv_prog_cxx_cxx11" = x
+else case e in #(
+  e) if test "x$ac_cv_prog_cxx_cxx11" = x
 then :
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
 printf "%s\n" "none needed" >&6; }
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_cxx11" >&5
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_cxx11" >&5
 printf "%s\n" "$ac_cv_prog_cxx_cxx11" >&6; }
-     CXX="$CXX $ac_cv_prog_cxx_cxx11"
+     CXX="$CXX $ac_cv_prog_cxx_cxx11" ;;
+esac
 fi
   ac_cv_prog_cxx_stdcxx=$ac_cv_prog_cxx_cxx11
-  ac_prog_cxx_stdcxx=cxx11
+  ac_prog_cxx_stdcxx=cxx11 ;;
+esac
 fi
 fi
 if test x$ac_prog_cxx_stdcxx = xno
@@ -5106,8 +5216,8 @@ printf %s "checking for $CXX option to enable C++98 features... " >&6; }
 if test ${ac_cv_prog_cxx_cxx98+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_cv_prog_cxx_cxx98=no
+else case e in #(
+  e) ac_cv_prog_cxx_cxx98=no
 ac_save_CXX=$CXX
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -5124,25 +5234,28 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam
   test "x$ac_cv_prog_cxx_cxx98" != "xno" && break
 done
 rm -f conftest.$ac_ext
-CXX=$ac_save_CXX
+CXX=$ac_save_CXX ;;
+esac
 fi
 
 if test "x$ac_cv_prog_cxx_cxx98" = xno
 then :
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
 printf "%s\n" "unsupported" >&6; }
-else $as_nop
-  if test "x$ac_cv_prog_cxx_cxx98" = x
+else case e in #(
+  e) if test "x$ac_cv_prog_cxx_cxx98" = x
 then :
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
 printf "%s\n" "none needed" >&6; }
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_cxx98" >&5
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_cxx98" >&5
 printf "%s\n" "$ac_cv_prog_cxx_cxx98" >&6; }
-     CXX="$CXX $ac_cv_prog_cxx_cxx98"
+     CXX="$CXX $ac_cv_prog_cxx_cxx98" ;;
+esac
 fi
   ac_cv_prog_cxx_stdcxx=$ac_cv_prog_cxx_cxx98
-  ac_prog_cxx_stdcxx=cxx98
+  ac_prog_cxx_stdcxx=cxx98 ;;
+esac
 fi
 fi
 
@@ -5167,8 +5280,8 @@ if test -z "$CPP"; then
   if test ${ac_cv_prog_CPP+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-      # Double quotes because $CC needs to be expanded
+else case e in #(
+  e)     # Double quotes because $CC needs to be expanded
     for CPP in "$CC -E" "$CC -E -traditional-cpp" cpp /lib/cpp
     do
       ac_preproc_ok=false
@@ -5186,9 +5299,10 @@ _ACEOF
 if ac_fn_c_try_cpp "$LINENO"
 then :
 
-else $as_nop
-  # Broken: fails on valid input.
-continue
+else case e in #(
+  e) # Broken: fails on valid input.
+continue ;;
+esac
 fi
 rm -f conftest.err conftest.i conftest.$ac_ext
 
@@ -5202,15 +5316,16 @@ if ac_fn_c_try_cpp "$LINENO"
 then :
   # Broken: success on invalid input.
 continue
-else $as_nop
-  # Passes both tests.
+else case e in #(
+  e) # Passes both tests.
 ac_preproc_ok=:
-break
+break ;;
+esac
 fi
 rm -f conftest.err conftest.i conftest.$ac_ext
 
 done
-# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+# Because of 'break', _AC_PREPROC_IFELSE's cleaning code was skipped.
 rm -f conftest.i conftest.err conftest.$ac_ext
 if $ac_preproc_ok
 then :
@@ -5219,7 +5334,8 @@ fi
 
     done
     ac_cv_prog_CPP=$CPP
-
+   ;;
+esac
 fi
   CPP=$ac_cv_prog_CPP
 else
@@ -5242,9 +5358,10 @@ _ACEOF
 if ac_fn_c_try_cpp "$LINENO"
 then :
 
-else $as_nop
-  # Broken: fails on valid input.
-continue
+else case e in #(
+  e) # Broken: fails on valid input.
+continue ;;
+esac
 fi
 rm -f conftest.err conftest.i conftest.$ac_ext
 
@@ -5258,24 +5375,26 @@ if ac_fn_c_try_cpp "$LINENO"
 then :
   # Broken: success on invalid input.
 continue
-else $as_nop
-  # Passes both tests.
+else case e in #(
+  e) # Passes both tests.
 ac_preproc_ok=:
-break
+break ;;
+esac
 fi
 rm -f conftest.err conftest.i conftest.$ac_ext
 
 done
-# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+# Because of 'break', _AC_PREPROC_IFELSE's cleaning code was skipped.
 rm -f conftest.i conftest.err conftest.$ac_ext
 if $ac_preproc_ok
 then :
 
-else $as_nop
-  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+else case e in #(
+  e) { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "C preprocessor \"$CPP\" fails sanity check
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; } ;;
+esac
 fi
 
 ac_ext=c
@@ -5292,8 +5411,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_RANLIB+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$RANLIB"; then
+else case e in #(
+  e) if test -n "$RANLIB"; then
   ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -5315,7 +5434,8 @@ done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 RANLIB=$ac_cv_prog_RANLIB
 if test -n "$RANLIB"; then
@@ -5337,8 +5457,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_RANLIB+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_RANLIB"; then
+else case e in #(
+  e) if test -n "$ac_ct_RANLIB"; then
   ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -5360,7 +5480,8 @@ done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB
 if test -n "$ac_ct_RANLIB"; then
@@ -5407,8 +5528,8 @@ if test -z "$INSTALL"; then
 if test ${ac_cv_path_install+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+else case e in #(
+  e) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
@@ -5462,7 +5583,8 @@ esac
 IFS=$as_save_IFS
 
 rm -rf conftest.one conftest.two conftest.dir
-
+ ;;
+esac
 fi
   if test ${ac_cv_path_install+y}; then
     INSTALL=$ac_cv_path_install
@@ -5503,8 +5625,8 @@ ac_make=`printf "%s\n" "$2" | sed 's/+/p/g; s/[^a-zA-Z0-9_]/_/g'`
 if eval test \${ac_cv_prog_make_${ac_make}_set+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat >conftest.make <<\_ACEOF
+else case e in #(
+  e) cat >conftest.make <<\_ACEOF
 SHELL = /bin/sh
 all:
 	@echo '@@@%%%=$(MAKE)=@@@%%%'
@@ -5516,7 +5638,8 @@ case `${MAKE-make} -f conftest.make 2>/dev/null` in
   *)
     eval ac_cv_prog_make_${ac_make}_set=no;;
 esac
-rm -f conftest.make
+rm -f conftest.make ;;
+esac
 fi
 if eval test \$ac_cv_prog_make_${ac_make}_set = yes; then
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
@@ -5536,8 +5659,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_RANLIB+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$RANLIB"; then
+else case e in #(
+  e) if test -n "$RANLIB"; then
   ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -5559,7 +5682,8 @@ done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 RANLIB=$ac_cv_prog_RANLIB
 if test -n "$RANLIB"; then
@@ -5581,8 +5705,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_RANLIB+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_RANLIB"; then
+else case e in #(
+  e) if test -n "$ac_ct_RANLIB"; then
   ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -5604,7 +5728,8 @@ done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB
 if test -n "$ac_ct_RANLIB"; then
@@ -5638,8 +5763,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_AR+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$AR"; then
+else case e in #(
+  e) if test -n "$AR"; then
   ac_cv_prog_AR="$AR" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -5661,7 +5786,8 @@ done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 AR=$ac_cv_prog_AR
 if test -n "$AR"; then
@@ -5683,8 +5809,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_AR+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_AR"; then
+else case e in #(
+  e) if test -n "$ac_ct_AR"; then
   ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -5706,7 +5832,8 @@ done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_AR=$ac_cv_prog_ac_ct_AR
 if test -n "$ac_ct_AR"; then
@@ -5741,8 +5868,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_CTAGS+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$CTAGS"; then
+else case e in #(
+  e) if test -n "$CTAGS"; then
   ac_cv_prog_CTAGS="$CTAGS" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -5764,7 +5891,8 @@ done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 CTAGS=$ac_cv_prog_CTAGS
 if test -n "$CTAGS"; then
@@ -5788,8 +5916,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ETAGS+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ETAGS"; then
+else case e in #(
+  e) if test -n "$ETAGS"; then
   ac_cv_prog_ETAGS="$ETAGS" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -5811,7 +5939,8 @@ done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ETAGS=$ac_cv_prog_ETAGS
 if test -n "$ETAGS"; then
@@ -6342,6 +6471,32 @@ LSP_FEATURES="${LSP_FEATURES} :c-compatible-variadic-dispatch"
 
 LSP_FEATURES="${LSP_FEATURES} :emscripten"
 
+                ;;
+        wasm32-unknown-wasi)
+                # Non-zero optimization levels seem to be slower in
+                # combination with the binaryen spill-pointers pass.
+                CFLAGS="${CFLAGS} -D_WASI_EMULATED_SIGNAL -D_WASI_EMULATED_PROCESS_CLOCKS -DECL_C_COMPATIBLE_VARIADIC_DISPATCH -O0  -mllvm -wasm-enable-sjlj"
+                clibs="-lwasi-emulated-signal -lwasi-emulated-process-clocks -lsetjmp ${clibs}"
+                # The default stack size is 64KB, that's too little
+                # for ECL. The spill-pointers pass is needed for the
+                # gc to find pointers on the stack.
+                #LDFLAGS="${LDFLAGS} -sSTACK_SIZE=1048576 -sBINARYEN_EXTRA_PASSES=--spill-pointers"
+                enable_threads='no'
+                enable_libffi='no'
+                enable_gmp='portable'
+                with_c_gmp=yes
+                with_tcp=no
+                shared="no"
+                                                INSTALL_TARGET='flatinstall'
+
+printf "%s\n" "#define ECL_C_COMPATIBLE_VARIADIC_DISPATCH /**/" >>confdefs.h
+
+
+LSP_FEATURES="${LSP_FEATURES} :c-compatible-variadic-dispatch"
+
+
+LSP_FEATURES="${LSP_FEATURES} :wasi"
+
                 ;;
 esac
 
@@ -6397,8 +6552,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_INSTALL_INFO+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $INSTALL_INFO in
+else case e in #(
+  e) case $INSTALL_INFO in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_INSTALL_INFO="$INSTALL_INFO" # Let the user override the test with a path.
   ;;
@@ -6423,6 +6578,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 INSTALL_INFO=$ac_cv_path_INSTALL_INFO
@@ -6455,8 +6611,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_MAKEINFO+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $MAKEINFO in
+else case e in #(
+  e) case $MAKEINFO in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_MAKEINFO="$MAKEINFO" # Let the user override the test with a path.
   ;;
@@ -6481,6 +6637,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 MAKEINFO=$ac_cv_path_MAKEINFO
@@ -6563,16 +6720,22 @@ printf %s "checking for __gmpz_init in -lgmp... " >&6; }
 if test ${ac_cv_lib_gmp___gmpz_init+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lgmp  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char __gmpz_init ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char __gmpz_init (void);
 int
 main (void)
 {
@@ -6584,20 +6747,23 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_gmp___gmpz_init=yes
-else $as_nop
-  ac_cv_lib_gmp___gmpz_init=no
+else case e in #(
+  e) ac_cv_lib_gmp___gmpz_init=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_gmp___gmpz_init" >&5
 printf "%s\n" "$ac_cv_lib_gmp___gmpz_init" >&6; }
 if test "x$ac_cv_lib_gmp___gmpz_init" = xyes
 then :
   with_system_gmp=yes
-else $as_nop
-  with_system_gmp=no
+else case e in #(
+  e) with_system_gmp=no  ;;
+esac
 fi
  ;;
 esac
@@ -6609,16 +6775,22 @@ printf %s "checking for __gmpz_init in -lgmp... " >&6; }
 if test ${ac_cv_lib_gmp___gmpz_init+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lgmp  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char __gmpz_init ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char __gmpz_init (void);
 int
 main (void)
 {
@@ -6630,20 +6802,23 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_gmp___gmpz_init=yes
-else $as_nop
-  ac_cv_lib_gmp___gmpz_init=no
+else case e in #(
+  e) ac_cv_lib_gmp___gmpz_init=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_gmp___gmpz_init" >&5
 printf "%s\n" "$ac_cv_lib_gmp___gmpz_init" >&6; }
 if test "x$ac_cv_lib_gmp___gmpz_init" = xyes
 then :
   FASL_LIBS="${FASL_LIBS} -lgmp"
-else $as_nop
-  as_fn_error $? "System gmp library requested but not found." "$LINENO" 5
+else case e in #(
+  e) as_fn_error $? "System gmp library requested but not found." "$LINENO" 5 ;;
+esac
 fi
 
   ac_header= ac_cache=
@@ -6806,16 +6981,22 @@ printf %s "checking for getpwnam in -lsun... " >&6; }
 if test ${ac_cv_lib_sun_getpwnam+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lsun  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char getpwnam ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char getpwnam (void);
 int
 main (void)
 {
@@ -6827,12 +7008,14 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_sun_getpwnam=yes
-else $as_nop
-  ac_cv_lib_sun_getpwnam=no
+else case e in #(
+  e) ac_cv_lib_sun_getpwnam=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_sun_getpwnam" >&5
 printf "%s\n" "$ac_cv_lib_sun_getpwnam" >&6; }
@@ -6849,15 +7032,21 @@ printf %s "checking for library containing strerror... " >&6; }
 if test ${ac_cv_search_strerror+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_func_search_save_LIBS=$LIBS
+else case e in #(
+  e) ac_func_search_save_LIBS=$LIBS
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char strerror ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char strerror (void);
 int
 main (void)
 {
@@ -6888,11 +7077,13 @@ done
 if test ${ac_cv_search_strerror+y}
 then :
 
-else $as_nop
-  ac_cv_search_strerror=no
+else case e in #(
+  e) ac_cv_search_strerror=no ;;
+esac
 fi
 rm conftest.$ac_ext
-LIBS=$ac_func_search_save_LIBS
+LIBS=$ac_func_search_save_LIBS ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_strerror" >&5
 printf "%s\n" "$ac_cv_search_strerror" >&6; }
@@ -7019,16 +7210,22 @@ printf %s "checking for GC_malloc in -lgc... " >&6; }
 if test ${ac_cv_lib_gc_GC_malloc+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lgc  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char GC_malloc ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char GC_malloc (void);
 int
 main (void)
 {
@@ -7040,12 +7237,14 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_gc_GC_malloc=yes
-else $as_nop
-  ac_cv_lib_gc_GC_malloc=no
+else case e in #(
+  e) ac_cv_lib_gc_GC_malloc=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_gc_GC_malloc" >&5
 printf "%s\n" "$ac_cv_lib_gc_GC_malloc" >&6; }
@@ -7055,8 +7254,9 @@ then :
 
   LIBS="-lgc $LIBS"
 
-else $as_nop
-  system_boehm="no"
+else case e in #(
+  e) system_boehm="no"  ;;
+esac
 fi
 
  else
@@ -7065,16 +7265,22 @@ printf %s "checking for GC_get_thr_restart_signal in -lgc... " >&6; }
 if test ${ac_cv_lib_gc_GC_get_thr_restart_signal+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lgc  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char GC_get_thr_restart_signal ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char GC_get_thr_restart_signal (void);
 int
 main (void)
 {
@@ -7086,12 +7292,14 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_gc_GC_get_thr_restart_signal=yes
-else $as_nop
-  ac_cv_lib_gc_GC_get_thr_restart_signal=no
+else case e in #(
+  e) ac_cv_lib_gc_GC_get_thr_restart_signal=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_gc_GC_get_thr_restart_signal" >&5
 printf "%s\n" "$ac_cv_lib_gc_GC_get_thr_restart_signal" >&6; }
@@ -7101,8 +7309,9 @@ then :
 
   LIBS="-lgc $LIBS"
 
-else $as_nop
-  system_boehm="no"
+else case e in #(
+  e) system_boehm="no"  ;;
+esac
 fi
 
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for GC_register_my_thread in -lgc" >&5
@@ -7110,16 +7319,22 @@ printf %s "checking for GC_register_my_thread in -lgc... " >&6; }
 if test ${ac_cv_lib_gc_GC_register_my_thread+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lgc  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char GC_register_my_thread ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char GC_register_my_thread (void);
 int
 main (void)
 {
@@ -7131,12 +7346,14 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_gc_GC_register_my_thread=yes
-else $as_nop
-  ac_cv_lib_gc_GC_register_my_thread=no
+else case e in #(
+  e) ac_cv_lib_gc_GC_register_my_thread=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_gc_GC_register_my_thread" >&5
 printf "%s\n" "$ac_cv_lib_gc_GC_register_my_thread" >&6; }
@@ -7146,8 +7363,9 @@ then :
 
   LIBS="-lgc $LIBS"
 
-else $as_nop
-  system_boehm="no"
+else case e in #(
+  e) system_boehm="no"  ;;
+esac
 fi
 
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for GC_set_start_callback in -lgc" >&5
@@ -7155,16 +7373,22 @@ printf %s "checking for GC_set_start_callback in -lgc... " >&6; }
 if test ${ac_cv_lib_gc_GC_set_start_callback+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lgc  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char GC_set_start_callback ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char GC_set_start_callback (void);
 int
 main (void)
 {
@@ -7176,12 +7400,14 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_gc_GC_set_start_callback=yes
-else $as_nop
-  ac_cv_lib_gc_GC_set_start_callback=no
+else case e in #(
+  e) ac_cv_lib_gc_GC_set_start_callback=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_gc_GC_set_start_callback" >&5
 printf "%s\n" "$ac_cv_lib_gc_GC_set_start_callback" >&6; }
@@ -7191,8 +7417,9 @@ then :
 
   LIBS="-lgc $LIBS"
 
-else $as_nop
-  system_boehm="no"
+else case e in #(
+  e) system_boehm="no"  ;;
+esac
 fi
 
  fi
@@ -7201,8 +7428,9 @@ fi
 if test "x$ac_cv_header_gc_gc_h" = xyes
 then :
   ECL_BOEHM_GC_HEADER='gc/gc.h'
-else $as_nop
-  system_boehm=no
+else case e in #(
+  e) system_boehm=no ;;
+esac
 fi
 
  fi
@@ -7312,16 +7540,22 @@ printf %s "checking for ffi_closure_alloc in -lffi... " >&6; }
 if test ${ac_cv_lib_ffi_ffi_closure_alloc+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lffi  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char ffi_closure_alloc ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char ffi_closure_alloc (void);
 int
 main (void)
 {
@@ -7333,20 +7567,23 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_ffi_ffi_closure_alloc=yes
-else $as_nop
-  ac_cv_lib_ffi_ffi_closure_alloc=no
+else case e in #(
+  e) ac_cv_lib_ffi_ffi_closure_alloc=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_ffi_ffi_closure_alloc" >&5
 printf "%s\n" "$ac_cv_lib_ffi_ffi_closure_alloc" >&6; }
 if test "x$ac_cv_lib_ffi_ffi_closure_alloc" = xyes
 then :
   system_libffi=yes
-else $as_nop
-  system_libffi=no
+else case e in #(
+  e) system_libffi=no  ;;
+esac
 fi
 
  if test "${system_libffi}" = yes; then
@@ -7361,8 +7598,9 @@ fi
 if test "x$ac_cv_header_ffi_h" = xyes
 then :
   ECL_LIBFFI_HEADER='ffi.h'
-else $as_nop
-  system_libffi=no
+else case e in #(
+  e) system_libffi=no ;;
+esac
 fi
 
    fi
@@ -7487,7 +7725,7 @@ then :
   withval=$with_x;
 fi
 
-# $have_x is `yes', `no', `disabled', or empty when we do not yet know.
+# $have_x is 'yes', 'no', 'disabled', or empty when we do not yet know.
 if test "x$with_x" = xno; then
   # The user explicitly disabled X.
   have_x=disabled
@@ -7497,8 +7735,8 @@ else
     *,NONE | NONE,*) if test ${ac_cv_have_x+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  # One or both of the vars are not set, and there is no cached value.
+else case e in #(
+  e) # One or both of the vars are not set, and there is no cached value.
 ac_x_includes=no
 ac_x_libraries=no
 # Do we need to do anything special at all?
@@ -7621,13 +7859,14 @@ if ac_fn_c_try_cpp "$LINENO"
 then :
   # We can compile using X headers with no special include directory.
 ac_x_includes=
-else $as_nop
-  for ac_dir in $ac_x_header_dirs; do
+else case e in #(
+  e) for ac_dir in $ac_x_header_dirs; do
   if test -r "$ac_dir/X11/Xlib.h"; then
     ac_x_includes=$ac_dir
     break
   fi
-done
+done ;;
+esac
 fi
 rm -f conftest.err conftest.i conftest.$ac_ext
 fi # $ac_x_includes = no
@@ -7654,8 +7893,8 @@ then :
   LIBS=$ac_save_LIBS
 # We can link X programs with no special library path.
 ac_x_libraries=
-else $as_nop
-  LIBS=$ac_save_LIBS
+else case e in #(
+  e) LIBS=$ac_save_LIBS
 for ac_dir in `printf "%s\n" "$ac_x_includes $ac_x_header_dirs" | sed s/include/lib/g`
 do
   # Don't even attempt the hair of trying to link an X program!
@@ -7665,7 +7904,8 @@ do
       break 2
     fi
   done
-done
+done ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
@@ -7682,6 +7922,7 @@ case $ac_x_includes,$ac_x_libraries in #(
     ac_cv_have_x="have_x=yes\
 	ac_x_includes='$ac_x_includes'\
 	ac_x_libraries='$ac_x_libraries'" ;;
+esac ;;
 esac
 fi
 ;; #(
@@ -7708,14 +7949,14 @@ fi
 
 ac_header_dirent=no
 for ac_hdr in dirent.h sys/ndir.h sys/dir.h ndir.h; do
-  as_ac_Header=`printf "%s\n" "ac_cv_header_dirent_$ac_hdr" | $as_tr_sh`
+  as_ac_Header=`printf "%s\n" "ac_cv_header_dirent_$ac_hdr" | sed "$as_sed_sh"`
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_hdr that defines DIR" >&5
 printf %s "checking for $ac_hdr that defines DIR... " >&6; }
 if eval test \${$as_ac_Header+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <sys/types.h>
 #include <$ac_hdr>
@@ -7732,10 +7973,12 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   eval "$as_ac_Header=yes"
-else $as_nop
-  eval "$as_ac_Header=no"
+else case e in #(
+  e) eval "$as_ac_Header=no" ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 eval ac_res=\$$as_ac_Header
 	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
@@ -7743,7 +7986,7 @@ printf "%s\n" "$ac_res" >&6; }
 if eval test \"x\$"$as_ac_Header"\" = x"yes"
 then :
   cat >>confdefs.h <<_ACEOF
-#define `printf "%s\n" "HAVE_$ac_hdr" | $as_tr_cpp` 1
+#define `printf "%s\n" "HAVE_$ac_hdr" | sed "$as_sed_cpp"` 1
 _ACEOF
 
 ac_header_dirent=$ac_hdr; break
@@ -7757,15 +8000,21 @@ printf %s "checking for library containing opendir... " >&6; }
 if test ${ac_cv_search_opendir+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_func_search_save_LIBS=$LIBS
+else case e in #(
+  e) ac_func_search_save_LIBS=$LIBS
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char opendir ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char opendir (void);
 int
 main (void)
 {
@@ -7796,11 +8045,13 @@ done
 if test ${ac_cv_search_opendir+y}
 then :
 
-else $as_nop
-  ac_cv_search_opendir=no
+else case e in #(
+  e) ac_cv_search_opendir=no ;;
+esac
 fi
 rm conftest.$ac_ext
-LIBS=$ac_func_search_save_LIBS
+LIBS=$ac_func_search_save_LIBS ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_opendir" >&5
 printf "%s\n" "$ac_cv_search_opendir" >&6; }
@@ -7817,15 +8068,21 @@ printf %s "checking for library containing opendir... " >&6; }
 if test ${ac_cv_search_opendir+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_func_search_save_LIBS=$LIBS
+else case e in #(
+  e) ac_func_search_save_LIBS=$LIBS
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char opendir ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char opendir (void);
 int
 main (void)
 {
@@ -7856,11 +8113,13 @@ done
 if test ${ac_cv_search_opendir+y}
 then :
 
-else $as_nop
-  ac_cv_search_opendir=no
+else case e in #(
+  e) ac_cv_search_opendir=no ;;
+esac
 fi
 rm conftest.$ac_ext
-LIBS=$ac_func_search_save_LIBS
+LIBS=$ac_func_search_save_LIBS ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_opendir" >&5
 printf "%s\n" "$ac_cv_search_opendir" >&6; }
@@ -7882,25 +8141,25 @@ printf "%s\n" "#define HAVE__BOOL 1" >>confdefs.h
 
 fi
 
-   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for stdbool.h that conforms to C99" >&5
-printf %s "checking for stdbool.h that conforms to C99... " >&6; }
+   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for stdbool.h that conforms to C99 or later" >&5
+printf %s "checking for stdbool.h that conforms to C99 or later... " >&6; }
 if test ${ac_cv_header_stdbool_h+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <stdbool.h>
 
-             #ifndef __bool_true_false_are_defined
-               #error "__bool_true_false_are_defined is not defined"
-             #endif
-             char a[__bool_true_false_are_defined == 1 ? 1 : -1];
+             /* "true" and "false" should be usable in #if expressions and
+                integer constant expressions, and "bool" should be a valid
+                type name.
 
-             /* Regardless of whether this is C++ or "_Bool" is a
-                valid type name, "true" and "false" should be usable
-                in #if expressions and integer constant expressions,
-                and "bool" should be a valid type name.  */
+                Although C99 requires bool, true, and false to be macros,
+                C23 and C++11 overrule that, so do not test for that.
+                Although C99 requires __bool_true_false_are_defined and
+                _Bool, C23 says they are obsolescent, so do not require
+                them.  */
 
              #if !true
                #error "'true' is not true"
@@ -7934,43 +8193,12 @@ else $as_nop
              char n[sizeof m == h * sizeof m[0] ? 1 : -1];
              char o[-1 - (bool) 0 < 0 ? 1 : -1];
              /* Catch a bug in an HP-UX C compiler.  See
-         https://gcc.gnu.org/ml/gcc-patches/2003-12/msg02303.html
-         https://lists.gnu.org/archive/html/bug-coreutils/2005-11/msg00161.html
+                https://gcc.gnu.org/ml/gcc-patches/2003-12/msg02303.html
+                https://lists.gnu.org/r/bug-coreutils/2005-11/msg00161.html
               */
              bool p = true;
              bool *pp = &p;
 
-             /* C 1999 specifies that bool, true, and false are to be
-                macros, but C++ 2011 and later overrule this.  */
-             #if __cplusplus < 201103
-              #ifndef bool
-               #error "bool is not defined"
-              #endif
-              #ifndef false
-               #error "false is not defined"
-              #endif
-              #ifndef true
-               #error "true is not defined"
-              #endif
-             #endif
-
-             /* If _Bool is available, repeat with it all the tests
-                above that used bool.  */
-             #ifdef HAVE__BOOL
-               struct sB { _Bool s: 1; _Bool t; } t;
-
-               char q[(_Bool) 0.5 == true ? 1 : -1];
-               char r[(_Bool) 0.0 == false ? 1 : -1];
-               char u[sizeof (_Bool) > 0 ? 1 : -1];
-               char v[sizeof t.t > 0 ? 1 : -1];
-
-               _Bool w[h];
-               char x[sizeof m == h * sizeof m[0] ? 1 : -1];
-               char y[-1 - (_Bool) 0 < 0 ? 1 : -1];
-               _Bool z = true;
-               _Bool *pz = &p;
-             #endif
-
 int
 main (void)
 {
@@ -7979,20 +8207,10 @@ main (void)
              *pp |= p;
              *pp |= ! p;
 
-             #ifdef HAVE__BOOL
-               _Bool pt = &t;
-               *pz |= z;
-               *pz |= ! z;
-             #endif
-
              /* Refer to every declared value, so they cannot be
                 discarded as unused.  */
-             return (!a + !b + !c + !d + !e + !f + !g + !h + !i + !j + !k
-                     + !l + !m + !n + !o + !p + !pp + !ps
-             #ifdef HAVE__BOOL
-                     + !q + !r + !u + !v + !w + !x + !y + !z + !pt
-             #endif
-                    );
+             return (!b + !c + !d + !e + !f + !g + !h + !i + !j + !k
+                     + !l + !m + !n + !o + !p + !pp + !ps);
 
   ;
   return 0;
@@ -8001,10 +8219,12 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_cv_header_stdbool_h=yes
-else $as_nop
-  ac_cv_header_stdbool_h=no
+else case e in #(
+  e) ac_cv_header_stdbool_h=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdbool_h" >&5
 printf "%s\n" "$ac_cv_header_stdbool_h" >&6; }
@@ -8020,8 +8240,8 @@ printf %s "checking for grep that handles long lines and -e... " >&6; }
 if test ${ac_cv_path_GREP+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -z "$GREP"; then
+else case e in #(
+  e) if test -z "$GREP"; then
   ac_path_GREP_found=false
   # Loop through the user's path and test for each of PROGNAME-LIST
   as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -8040,9 +8260,10 @@ do
       as_fn_executable_p "$ac_path_GREP" || continue
 # Check for GNU ac_path_GREP and select it if it is found.
   # Check for GNU $ac_path_GREP
-case `"$ac_path_GREP" --version 2>&1` in
+case `"$ac_path_GREP" --version 2>&1` in #(
 *GNU*)
   ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
+#(
 *)
   ac_count=0
   printf %s 0123456789 >"conftest.in"
@@ -8077,7 +8298,8 @@ IFS=$as_save_IFS
 else
   ac_cv_path_GREP=$GREP
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
 printf "%s\n" "$ac_cv_path_GREP" >&6; }
@@ -8092,8 +8314,8 @@ printf %s "checking for egrep... " >&6; }
 if test ${ac_cv_path_EGREP+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
+else case e in #(
+  e) if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
    then ac_cv_path_EGREP="$GREP -E"
    else
      if test -z "$EGREP"; then
@@ -8115,9 +8337,10 @@ do
       as_fn_executable_p "$ac_path_EGREP" || continue
 # Check for GNU ac_path_EGREP and select it if it is found.
   # Check for GNU $ac_path_EGREP
-case `"$ac_path_EGREP" --version 2>&1` in
+case `"$ac_path_EGREP" --version 2>&1` in #(
 *GNU*)
   ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
+#(
 *)
   ac_count=0
   printf %s 0123456789 >"conftest.in"
@@ -8153,12 +8376,15 @@ else
   ac_cv_path_EGREP=$EGREP
 fi
 
-   fi
+   fi ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
 printf "%s\n" "$ac_cv_path_EGREP" >&6; }
  EGREP="$ac_cv_path_EGREP"
 
+         EGREP_TRADITIONAL=$EGREP
+ ac_cv_path_EGREP_TRADITIONAL=$EGREP
 
 
 
@@ -8332,8 +8558,8 @@ printf %s "checking for an ANSI C-conforming const... " >&6; }
 if test ${ac_cv_c_const+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -8397,10 +8623,12 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_cv_c_const=yes
-else $as_nop
-  ac_cv_c_const=no
+else case e in #(
+  e) ac_cv_c_const=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_const" >&5
 printf "%s\n" "$ac_cv_c_const" >&6; }
@@ -8414,8 +8642,8 @@ printf %s "checking for inline... " >&6; }
 if test ${ac_cv_c_inline+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_cv_c_inline=no
+else case e in #(
+  e) ac_cv_c_inline=no
 for ac_kw in inline __inline__ __inline; do
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -8433,7 +8661,8 @@ fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
   test "$ac_cv_c_inline" != no && break
 done
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_inline" >&5
 printf "%s\n" "$ac_cv_c_inline" >&6; }
@@ -8457,18 +8686,19 @@ ac_fn_c_check_type "$LINENO" "size_t" "ac_cv_type_size_t" "$ac_includes_default"
 if test "x$ac_cv_type_size_t" = xyes
 then :
 
-else $as_nop
-
+else case e in #(
+  e)
 printf "%s\n" "#define size_t unsigned int" >>confdefs.h
-
+ ;;
+esac
 fi
                   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether struct tm is in sys/time.h or time.h" >&5
 printf %s "checking whether struct tm is in sys/time.h or time.h... " >&6; }
 if test ${ac_cv_struct_tm+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <sys/types.h>
 #include <time.h>
@@ -8486,10 +8716,12 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_cv_struct_tm=time.h
-else $as_nop
-  ac_cv_struct_tm=sys/time.h
+else case e in #(
+  e) ac_cv_struct_tm=sys/time.h ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_struct_tm" >&5
 printf "%s\n" "$ac_cv_struct_tm" >&6; }
@@ -8504,8 +8736,8 @@ printf %s "checking for working volatile... " >&6; }
 if test ${ac_cv_c_volatile+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -8522,10 +8754,12 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_cv_c_volatile=yes
-else $as_nop
-  ac_cv_c_volatile=no
+else case e in #(
+  e) ac_cv_c_volatile=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_volatile" >&5
 printf "%s\n" "$ac_cv_c_volatile" >&6; }
@@ -8569,8 +8803,9 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_cv_c_long_long=yes
-else $as_nop
-  ac_cv_c_long_long=no
+else case e in #(
+  e) ac_cv_c_long_long=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
   fi
@@ -8579,12 +8814,12 @@ if test $ac_cv_c_long_long = yes; then
   if test "x$ECL_LONG_LONG_BITS" = "x"; then
     if test "$cross_compiling" = yes
 then :
-  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "cannot run test program while cross compiling
-See \`config.log' for more details" "$LINENO" 5; }
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+See 'config.log' for more details" "$LINENO" 5; }
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <stdio.h>
@@ -8607,7 +8842,8 @@ then :
   eval "`cat conftestval`"
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+  conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 
   fi
@@ -8640,8 +8876,8 @@ printf %s "checking whether byte ordering is bigendian... " >&6; }
 if test ${ac_cv_c_bigendian+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_cv_c_bigendian=unknown
+else case e in #(
+  e) ac_cv_c_bigendian=unknown
     # See if we're dealing with a universal compiler.
     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -8687,8 +8923,8 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 int
 main (void)
 {
-#if ! (defined BYTE_ORDER && defined BIG_ENDIAN \
-		     && defined LITTLE_ENDIAN && BYTE_ORDER && BIG_ENDIAN \
+#if ! (defined BYTE_ORDER && defined BIG_ENDIAN \\
+		     && defined LITTLE_ENDIAN && BYTE_ORDER && BIG_ENDIAN \\
 		     && LITTLE_ENDIAN)
 	      bogus endian macros
 	     #endif
@@ -8719,8 +8955,9 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_cv_c_bigendian=yes
-else $as_nop
-  ac_cv_c_bigendian=no
+else case e in #(
+  e) ac_cv_c_bigendian=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
@@ -8764,8 +9001,9 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_cv_c_bigendian=yes
-else $as_nop
-  ac_cv_c_bigendian=no
+else case e in #(
+  e) ac_cv_c_bigendian=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
@@ -8792,22 +9030,23 @@ unsigned short int ascii_mm[] =
 		int use_ebcdic (int i) {
 		  return ebcdic_mm[i] + ebcdic_ii[i];
 		}
-		extern int foo;
-
-int
-main (void)
-{
-return use_ascii (foo) == use_ebcdic (foo);
-  ;
-  return 0;
-}
+		int
+		main (int argc, char **argv)
+		{
+		  /* Intimidate the compiler so that it does not
+		     optimize the arrays away.  */
+		  char *p = argv[0];
+		  ascii_mm[1] = *p++; ebcdic_mm[1] = *p++;
+		  ascii_ii[1] = *p++; ebcdic_ii[1] = *p++;
+		  return use_ascii (argc) == use_ebcdic (*p);
+		}
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"
+if ac_fn_c_try_link "$LINENO"
 then :
-  if grep BIGenDianSyS conftest.$ac_objext >/dev/null; then
+  if grep BIGenDianSyS conftest$ac_exeext >/dev/null; then
 	      ac_cv_c_bigendian=yes
 	    fi
-	    if grep LiTTleEnDian conftest.$ac_objext >/dev/null ; then
+	    if grep LiTTleEnDian conftest$ac_exeext >/dev/null ; then
 	      if test "$ac_cv_c_bigendian" = unknown; then
 		ac_cv_c_bigendian=no
 	      else
@@ -8816,9 +9055,10 @@ then :
 	      fi
 	    fi
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $ac_includes_default
 int
@@ -8841,14 +9081,17 @@ _ACEOF
 if ac_fn_c_try_run "$LINENO"
 then :
   ac_cv_c_bigendian=no
-else $as_nop
-  ac_cv_c_bigendian=yes
+else case e in #(
+  e) ac_cv_c_bigendian=yes ;;
+esac
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+  conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 
-    fi
+    fi ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_bigendian" >&5
 printf "%s\n" "$ac_cv_c_bigendian" >&6; }
@@ -8886,12 +9129,12 @@ printf %s "checking appropriate type for fixnums... " >&6; }
 if test -z "${CL_FIXNUM_TYPE}" ; then
   if test "$cross_compiling" = yes
 then :
-  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "cannot run test program while cross compiling
-See \`config.log' for more details" "$LINENO" 5; }
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+See 'config.log' for more details" "$LINENO" 5; }
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <stdio.h>
@@ -8979,7 +9222,8 @@ then :
   eval "`cat conftestval`"
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+  conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 
 fi
@@ -9172,12 +9416,12 @@ printf %s "checking character sequence for end of line... " >&6; }
 if test -z "${ECL_NEWLINE}" ; then
 if test "$cross_compiling" = yes
 then :
-  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "cannot run test program while cross compiling
-See \`config.log' for more details" "$LINENO" 5; }
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+See 'config.log' for more details" "$LINENO" 5; }
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <stdio.h>
@@ -9217,7 +9461,8 @@ then :
   ECL_NEWLINE=`cat conftestval`
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+  conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 
 fi
@@ -9242,8 +9487,9 @@ ac_fn_c_check_func "$LINENO" "_longjmp" "ac_cv_func__longjmp"
 if test "x$ac_cv_func__longjmp" = xyes
 then :
   ECL_SETJMP="_setjmp";ECL_LONGJMP="_longjmp"
-else $as_nop
-  ECL_SETJMP="setjmp";ECL_LONGJMP="longjmp"
+else case e in #(
+  e) ECL_SETJMP="setjmp";ECL_LONGJMP="longjmp" ;;
+esac
 fi
 
 
@@ -9378,8 +9624,9 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   sse_included=yes
-else $as_nop
-  sse_included=no
+else case e in #(
+  e) sse_included=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
@@ -9404,8 +9651,9 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   sse_included=yes
-else $as_nop
-  sse_included=no
+else case e in #(
+  e) sse_included=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
@@ -9439,8 +9687,9 @@ then :
 printf "%s\n" "#define HAVE_FLOAT_COMPLEX 1" >>confdefs.h
 
 enable_c99complex=yes
-else $as_nop
-  enable_c99complex=no
+else case e in #(
+  e) enable_c99complex=no ;;
+esac
 fi
 ac_fn_c_check_type "$LINENO" "double complex" "ac_cv_type_double_complex" "#include <complex.h>
 "
@@ -9450,8 +9699,9 @@ then :
 printf "%s\n" "#define HAVE_DOUBLE_COMPLEX 1" >>confdefs.h
 
 enable_c99complex=yes
-else $as_nop
-  enable_c99complex=no
+else case e in #(
+  e) enable_c99complex=no ;;
+esac
 fi
 ac_fn_c_check_type "$LINENO" "long complex" "ac_cv_type_long_complex" "#include <complex.h>
 "
@@ -9461,8 +9711,9 @@ then :
 printf "%s\n" "#define HAVE_LONG_COMPLEX 1" >>confdefs.h
 
 enable_c99complex=yes
-else $as_nop
-  enable_c99complex=no
+else case e in #(
+  e) enable_c99complex=no ;;
+esac
 fi
 
   fi
@@ -9470,16 +9721,17 @@ fi
 
   for ac_func in crealf creal creall cimagf cimag cimagl cabsf cabs cabsl conjf conj conjl csqrtf csqrt csqrtl ccosf ccos ccosl csinf csin csinl ctanf ctan ctanl ccoshf ccosh ccoshl csinhf csinh csinhl ctanhf ctanh ctanhl cexpf cexp cexpl cpowf cpow cpowl clogf clog clogl casinf casin casinl cacosf cacos cacosl catanf catan catanl casinhf casinh casinhl cacoshf cacosh cacoshl catanhf catanh catanhl
 do :
-  as_ac_var=`printf "%s\n" "ac_cv_func_$ac_func" | $as_tr_sh`
+  as_ac_var=`printf "%s\n" "ac_cv_func_$ac_func" | sed "$as_sed_sh"`
 ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
 if eval test \"x\$"$as_ac_var"\" = x"yes"
 then :
   cat >>confdefs.h <<_ACEOF
-#define `printf "%s\n" "HAVE_$ac_func" | $as_tr_cpp` 1
+#define `printf "%s\n" "HAVE_$ac_func" | sed "$as_sed_cpp"` 1
 _ACEOF
 
-else $as_nop
-  enable_c99complex=no
+else case e in #(
+  e) enable_c99complex=no ;;
+esac
 fi
 
 done
@@ -9504,12 +9756,12 @@ printf %s "checking whether stack growns downwards... " >&6; }
 if test -z "${ECL_STACK_DIR}" ; then
   if test "$cross_compiling" = yes
 then :
-  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "cannot run test program while cross compiling
-See \`config.log' for more details" "$LINENO" 5; }
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+See 'config.log' for more details" "$LINENO" 5; }
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 
@@ -9545,11 +9797,13 @@ _ACEOF
 if ac_fn_c_try_run "$LINENO"
 then :
   ECL_STACK_DIR=down
-else $as_nop
-  ECL_STACK_DIR=up
+else case e in #(
+  e) ECL_STACK_DIR=up ;;
+esac
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+  conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 
 fi
@@ -9567,8 +9821,8 @@ printf %s "checking for $CC options needed to detect all undeclared functions...
 if test ${ac_cv_c_undeclared_builtin_options+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_save_CFLAGS=$CFLAGS
+else case e in #(
+  e) ac_save_CFLAGS=$CFLAGS
    ac_cv_c_undeclared_builtin_options='cannot detect'
    for ac_arg in '' -fno-builtin; do
      CFLAGS="$ac_save_CFLAGS $ac_arg"
@@ -9587,8 +9841,8 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
 
-else $as_nop
-  # This test program should compile successfully.
+else case e in #(
+  e) # This test program should compile successfully.
         # No library function is consistently available on
         # freestanding implementations, so test against a dummy
         # declaration.  Include always-available headers on the
@@ -9616,26 +9870,29 @@ then :
   if test x"$ac_arg" = x
 then :
   ac_cv_c_undeclared_builtin_options='none needed'
-else $as_nop
-  ac_cv_c_undeclared_builtin_options=$ac_arg
+else case e in #(
+  e) ac_cv_c_undeclared_builtin_options=$ac_arg ;;
+esac
 fi
           break
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
     done
     CFLAGS=$ac_save_CFLAGS
-
+   ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_undeclared_builtin_options" >&5
 printf "%s\n" "$ac_cv_c_undeclared_builtin_options" >&6; }
   case $ac_cv_c_undeclared_builtin_options in #(
   'cannot detect') :
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "cannot make $CC report undeclared builtins
-See \`config.log' for more details" "$LINENO" 5; } ;; #(
+See 'config.log' for more details" "$LINENO" 5; } ;; #(
   'none needed') :
     ac_c_undeclared_builtin_options='' ;; #(
   *) :
@@ -9667,8 +9924,8 @@ printf %s "checking whether closedir returns void... " >&6; }
 if test ${ac_cv_func_closedir_void+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <$ac_header_dirent>
@@ -9686,10 +9943,12 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_cv_func_closedir_void=no
-else $as_nop
-  ac_cv_func_closedir_void=yes
+else case e in #(
+  e) ac_cv_func_closedir_void=yes ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_closedir_void" >&5
 printf "%s\n" "$ac_cv_func_closedir_void" >&6; }
@@ -9704,8 +9963,8 @@ printf %s "checking for error_at_line... " >&6; }
 if test ${ac_cv_lib_error_at_line+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <error.h>
 int
@@ -9719,11 +9978,13 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_error_at_line=yes
-else $as_nop
-  ac_cv_lib_error_at_line=no
+else case e in #(
+  e) ac_cv_lib_error_at_line=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
-    conftest$ac_exeext conftest.$ac_ext
+    conftest$ac_exeext conftest.$ac_ext ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_error_at_line" >&5
 printf "%s\n" "$ac_cv_lib_error_at_line" >&6; }
@@ -9742,8 +10003,8 @@ fi
 if test "x$ac_cv_type_pid_t" = xyes
 then :
 
-else $as_nop
-                                          cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e)                                         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
           #if defined _WIN64 && !defined __CYGWIN__
@@ -9762,14 +10023,16 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_pid_type='int'
-else $as_nop
-  ac_pid_type='__int64'
+else case e in #(
+  e) ac_pid_type='__int64' ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 
 printf "%s\n" "#define pid_t $ac_pid_type" >>confdefs.h
 
-
+     ;;
+esac
 fi
 
 
@@ -9796,19 +10059,19 @@ printf %s "checking for working fork... " >&6; }
 if test ${ac_cv_func_fork_works+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test "$cross_compiling" = yes
+else case e in #(
+  e) if test "$cross_compiling" = yes
 then :
   ac_cv_func_fork_works=cross
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $ac_includes_default
 int
 main (void)
 {
 
-	  /* By Ruediger Kuhlmann. */
+	  /* By R. Kuhlmann. */
 	  return fork () < 0;
 
   ;
@@ -9818,13 +10081,16 @@ _ACEOF
 if ac_fn_c_try_run "$LINENO"
 then :
   ac_cv_func_fork_works=yes
-else $as_nop
-  ac_cv_func_fork_works=no
+else case e in #(
+  e) ac_cv_func_fork_works=no ;;
+esac
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+  conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_fork_works" >&5
 printf "%s\n" "$ac_cv_func_fork_works" >&6; }
@@ -9852,12 +10118,12 @@ printf %s "checking for working vfork... " >&6; }
 if test ${ac_cv_func_vfork_works+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test "$cross_compiling" = yes
+else case e in #(
+  e) if test "$cross_compiling" = yes
 then :
   ac_cv_func_vfork_works=cross
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 /* Thanks to Paul Eggert for this test.  */
 $ac_includes_default
@@ -9968,13 +10234,16 @@ _ACEOF
 if ac_fn_c_try_run "$LINENO"
 then :
   ac_cv_func_vfork_works=yes
-else $as_nop
-  ac_cv_func_vfork_works=no
+else case e in #(
+  e) ac_cv_func_vfork_works=no ;;
+esac
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+  conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_vfork_works" >&5
 printf "%s\n" "$ac_cv_func_vfork_works" >&6; }
@@ -10001,69 +10270,25 @@ printf "%s\n" "#define HAVE_WORKING_FORK 1" >>confdefs.h
 
 fi
 
-if test $ac_cv_c_compiler_gnu = yes; then
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CC needs -traditional" >&5
-printf %s "checking whether $CC needs -traditional... " >&6; }
-if test ${ac_cv_prog_gcc_traditional+y}
-then :
-  printf %s "(cached) " >&6
-else $as_nop
-    ac_pattern="Autoconf.*'x'"
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <sgtty.h>
-Autoconf TIOCGETP
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "$ac_pattern" >/dev/null 2>&1
-then :
-  ac_cv_prog_gcc_traditional=yes
-else $as_nop
-  ac_cv_prog_gcc_traditional=no
-fi
-rm -rf conftest*
-
-
-  if test $ac_cv_prog_gcc_traditional = no; then
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <termio.h>
-Autoconf TCGETA
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "$ac_pattern" >/dev/null 2>&1
-then :
-  ac_cv_prog_gcc_traditional=yes
-fi
-rm -rf conftest*
-
-  fi
-fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_gcc_traditional" >&5
-printf "%s\n" "$ac_cv_prog_gcc_traditional" >&6; }
-  if test $ac_cv_prog_gcc_traditional = yes; then
-    CC="$CC -traditional"
-  fi
-fi
 
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for GNU libc compatible malloc" >&5
 printf %s "checking for GNU libc compatible malloc... " >&6; }
 if test ${ac_cv_func_malloc_0_nonnull+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test "$cross_compiling" = yes
+else case e in #(
+  e) if test "$cross_compiling" = yes
 then :
   case "$host_os" in # ((
 		  # Guess yes on platforms where we know the result.
 		  *-gnu* | freebsd* | netbsd* | openbsd* | bitrig* \
-		  | hpux* | solaris* | cygwin* | mingw* | msys* )
+		  | hpux* | solaris* | cygwin* | mingw* | windows* | msys* )
 		    ac_cv_func_malloc_0_nonnull=yes ;;
 		  # If we don't know, assume the worst.
 		  *) ac_cv_func_malloc_0_nonnull=no ;;
 		esac
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <stdlib.h>
 
@@ -10081,13 +10306,16 @@ _ACEOF
 if ac_fn_c_try_run "$LINENO"
 then :
   ac_cv_func_malloc_0_nonnull=yes
-else $as_nop
-  ac_cv_func_malloc_0_nonnull=no
+else case e in #(
+  e) ac_cv_func_malloc_0_nonnull=no ;;
+esac
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+  conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_malloc_0_nonnull" >&5
 printf "%s\n" "$ac_cv_func_malloc_0_nonnull" >&6; }
@@ -10096,8 +10324,8 @@ then :
 
 printf "%s\n" "#define HAVE_MALLOC 1" >>confdefs.h
 
-else $as_nop
-  printf "%s\n" "#define HAVE_MALLOC 0" >>confdefs.h
+else case e in #(
+  e) printf "%s\n" "#define HAVE_MALLOC 0" >>confdefs.h
 
    case " $LIBOBJS " in
   *" malloc.$ac_objext "* ) ;;
@@ -10107,7 +10335,8 @@ esac
 
 
 printf "%s\n" "#define malloc rpl_malloc" >>confdefs.h
-
+ ;;
+esac
 fi
 
 
@@ -10116,12 +10345,12 @@ printf %s "checking for working memcmp... " >&6; }
 if test ${ac_cv_func_memcmp_working+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test "$cross_compiling" = yes
+else case e in #(
+  e) if test "$cross_compiling" = yes
 then :
   ac_cv_func_memcmp_working=no
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $ac_includes_default
 int
@@ -10159,13 +10388,16 @@ _ACEOF
 if ac_fn_c_try_run "$LINENO"
 then :
   ac_cv_func_memcmp_working=yes
-else $as_nop
-  ac_cv_func_memcmp_working=no
+else case e in #(
+  e) ac_cv_func_memcmp_working=no ;;
+esac
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+  conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_memcmp_working" >&5
 printf "%s\n" "$ac_cv_func_memcmp_working" >&6; }
@@ -10185,8 +10417,8 @@ printf %s "checking for working mmap... " >&6; }
 if test ${ac_cv_func_mmap_fixed_mapped+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test "$cross_compiling" = yes
+else case e in #(
+  e) if test "$cross_compiling" = yes
 then :
   case "$host_os" in # ((
 			  # Guess yes on platforms where we know the result.
@@ -10194,8 +10426,8 @@ then :
 			  # If we don't know, assume the worst.
 		  *)      ac_cv_func_mmap_fixed_mapped=no ;;
 		esac
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $ac_includes_default
 /* malloc might have been renamed as rpl_malloc. */
@@ -10216,21 +10448,21 @@ $ac_includes_default
    VM page cache was not coherent with the file system buffer cache
    like early versions of FreeBSD and possibly contemporary NetBSD.)
    For shared mappings, we should conversely verify that changes get
-   propagated back to all the places they're supposed to be.
-
-   Grep wants private fixed already mapped.
-   The main things grep needs to know about mmap are:
-   * does it exist and is it safe to write into the mmap'd area
-   * how to use it (BSD variants)  */
+   propagated back to all the places they're supposed to be.  */
 
 #include <fcntl.h>
 #include <sys/mman.h>
 
-/* This mess was copied from the GNU getpagesize.h.  */
-#ifndef HAVE_GETPAGESIZE
+#ifndef getpagesize
+/* Prefer sysconf to the legacy getpagesize function, as getpagesize has
+   been removed from POSIX and is limited to page sizes that fit in 'int'.  */
 # ifdef _SC_PAGESIZE
-#  define getpagesize() sysconf(_SC_PAGESIZE)
-# else /* no _SC_PAGESIZE */
+#  define getpagesize() sysconf (_SC_PAGESIZE)
+# elif defined _SC_PAGE_SIZE
+#  define getpagesize() sysconf (_SC_PAGE_SIZE)
+# elif HAVE_GETPAGESIZE
+int getpagesize ();
+# else
 #  ifdef HAVE_SYS_PARAM_H
 #   include <sys/param.h>
 #   ifdef EXEC_PAGESIZE
@@ -10254,16 +10486,15 @@ $ac_includes_default
 #  else /* no HAVE_SYS_PARAM_H */
 #   define getpagesize() 8192	/* punt totally */
 #  endif /* no HAVE_SYS_PARAM_H */
-# endif /* no _SC_PAGESIZE */
-
-#endif /* no HAVE_GETPAGESIZE */
+# endif
+#endif
 
 int
 main (void)
 {
   char *data, *data2, *data3;
   const char *cdata2;
-  int i, pagesize;
+  long i, pagesize;
   int fd, fd2;
 
   pagesize = getpagesize ();
@@ -10297,8 +10528,7 @@ main (void)
     if (*(data2 + i))
       return 7;
   close (fd2);
-  if (munmap (data2, pagesize))
-    return 8;
+  /* 'return 8;' not currently used.  */
 
   /* Next, try to mmap the file at a fixed address which already has
      something else allocated at it.  If we can, also make sure that
@@ -10335,13 +10565,16 @@ _ACEOF
 if ac_fn_c_try_run "$LINENO"
 then :
   ac_cv_func_mmap_fixed_mapped=yes
-else $as_nop
-  ac_cv_func_mmap_fixed_mapped=no
+else case e in #(
+  e) ac_cv_func_mmap_fixed_mapped=no ;;
+esac
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+  conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_mmap_fixed_mapped" >&5
 printf "%s\n" "$ac_cv_func_mmap_fixed_mapped" >&6; }
@@ -10357,19 +10590,19 @@ printf %s "checking for GNU libc compatible realloc... " >&6; }
 if test ${ac_cv_func_realloc_0_nonnull+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test "$cross_compiling" = yes
+else case e in #(
+  e) if test "$cross_compiling" = yes
 then :
   case "$host_os" in # ((
 		  # Guess yes on platforms where we know the result.
 		  *-gnu* | freebsd* | netbsd* | openbsd* | bitrig* \
-		  | hpux* | solaris* | cygwin* | mingw* | msys* )
+		  | hpux* | solaris* | cygwin* | mingw* | windows* | msys* )
 		    ac_cv_func_realloc_0_nonnull=yes ;;
 		  # If we don't know, assume the worst.
 		  *) ac_cv_func_realloc_0_nonnull=no ;;
 		esac
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <stdlib.h>
 
@@ -10387,13 +10620,16 @@ _ACEOF
 if ac_fn_c_try_run "$LINENO"
 then :
   ac_cv_func_realloc_0_nonnull=yes
-else $as_nop
-  ac_cv_func_realloc_0_nonnull=no
+else case e in #(
+  e) ac_cv_func_realloc_0_nonnull=no ;;
+esac
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+  conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_realloc_0_nonnull" >&5
 printf "%s\n" "$ac_cv_func_realloc_0_nonnull" >&6; }
@@ -10402,8 +10638,8 @@ then :
 
 printf "%s\n" "#define HAVE_REALLOC 1" >>confdefs.h
 
-else $as_nop
-  printf "%s\n" "#define HAVE_REALLOC 0" >>confdefs.h
+else case e in #(
+  e) printf "%s\n" "#define HAVE_REALLOC 0" >>confdefs.h
 
    case " $LIBOBJS " in
   *" realloc.$ac_objext "* ) ;;
@@ -10413,7 +10649,8 @@ esac
 
 
 printf "%s\n" "#define realloc rpl_realloc" >>confdefs.h
-
+ ;;
+esac
 fi
 
 
@@ -10425,8 +10662,8 @@ printf %s "checking types of arguments for select... " >&6; }
 if test ${ac_cv_func_select_args+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_cv_func_select_args='int,int *,struct timeval *'
+else case e in #(
+  e) ac_cv_func_select_args='int,int *,struct timeval *'
 for ac_arg234 in 'fd_set *' 'int *' 'void *'; do
  for ac_arg1 in 'int' 'size_t' 'unsigned long int' 'unsigned int'; do
   for ac_arg5 in 'struct timeval *' 'const struct timeval *'; do
@@ -10458,7 +10695,8 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
   done
  done
 done
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_select_args" >&5
 printf "%s\n" "$ac_cv_func_select_args" >&6; }
@@ -10482,8 +10720,8 @@ printf %s "checking return type of signal handlers... " >&6; }
 if test ${ac_cv_type_signal+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <sys/types.h>
 #include <signal.h>
@@ -10499,10 +10737,12 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_cv_type_signal=int
-else $as_nop
-  ac_cv_type_signal=void
+else case e in #(
+  e) ac_cv_type_signal=void ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_type_signal" >&5
 printf "%s\n" "$ac_cv_type_signal" >&6; }
@@ -10515,8 +10755,8 @@ printf %s "checking whether lstat correctly handles trailing slash... " >&6; }
 if test ${ac_cv_func_lstat_dereferences_slashed_symlink+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  rm -f conftest.sym conftest.file
+else case e in #(
+  e) rm -f conftest.sym conftest.file
 echo >conftest.file
 if test "$as_ln_s" = "ln -s" && ln -s conftest.file conftest.sym; then
   if test "$cross_compiling" = yes
@@ -10527,8 +10767,8 @@ then :
 			   # If we don't know, assume the worst.
 		   *)      ac_cv_func_lstat_dereferences_slashed_symlink=no ;;
 		 esac
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $ac_includes_default
 int
@@ -10546,20 +10786,23 @@ _ACEOF
 if ac_fn_c_try_run "$LINENO"
 then :
   ac_cv_func_lstat_dereferences_slashed_symlink=yes
-else $as_nop
-  ac_cv_func_lstat_dereferences_slashed_symlink=no
+else case e in #(
+  e) ac_cv_func_lstat_dereferences_slashed_symlink=no ;;
+esac
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+  conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 
 else
-  # If the `ln -s' command failed, then we probably don't even
+  # If the 'ln -s' command failed, then we probably don't even
   # have an lstat function.
   ac_cv_func_lstat_dereferences_slashed_symlink=no
 fi
 rm -f conftest.sym conftest.file
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_lstat_dereferences_slashed_symlink" >&5
 printf "%s\n" "$ac_cv_func_lstat_dereferences_slashed_symlink" >&6; }
@@ -10583,12 +10826,12 @@ printf %s "checking whether stat accepts an empty string... " >&6; }
 if test ${ac_cv_func_stat_empty_string_bug+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test "$cross_compiling" = yes
+else case e in #(
+  e) if test "$cross_compiling" = yes
 then :
   ac_cv_func_stat_empty_string_bug=yes
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $ac_includes_default
 int
@@ -10603,13 +10846,16 @@ _ACEOF
 if ac_fn_c_try_run "$LINENO"
 then :
   ac_cv_func_stat_empty_string_bug=no
-else $as_nop
-  ac_cv_func_stat_empty_string_bug=yes
+else case e in #(
+  e) ac_cv_func_stat_empty_string_bug=yes ;;
+esac
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+  conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_stat_empty_string_bug" >&5
 printf "%s\n" "$ac_cv_func_stat_empty_string_bug" >&6; }
@@ -10630,18 +10876,15 @@ printf %s "checking for working strtod... " >&6; }
 if test ${ac_cv_func_strtod+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test "$cross_compiling" = yes
+else case e in #(
+  e) if test "$cross_compiling" = yes
 then :
   ac_cv_func_strtod=no
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 $ac_includes_default
-#ifndef strtod
-double strtod ();
-#endif
 int
 main (void)
 {
@@ -10671,13 +10914,16 @@ _ACEOF
 if ac_fn_c_try_run "$LINENO"
 then :
   ac_cv_func_strtod=yes
-else $as_nop
-  ac_cv_func_strtod=no
+else case e in #(
+  e) ac_cv_func_strtod=no ;;
+esac
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+  conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_strtod" >&5
 printf "%s\n" "$ac_cv_func_strtod" >&6; }
@@ -10700,16 +10946,22 @@ printf %s "checking for pow in -lm... " >&6; }
 if test ${ac_cv_lib_m_pow+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char pow ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char pow (void);
 int
 main (void)
 {
@@ -10721,21 +10973,24 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_m_pow=yes
-else $as_nop
-  ac_cv_lib_m_pow=no
+else case e in #(
+  e) ac_cv_lib_m_pow=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_m_pow" >&5
 printf "%s\n" "$ac_cv_lib_m_pow" >&6; }
 if test "x$ac_cv_lib_m_pow" = xyes
 then :
   POW_LIB=-lm
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: cannot find library containing definition of pow" >&5
-printf "%s\n" "$as_me: WARNING: cannot find library containing definition of pow" >&2;}
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: cannot find library containing definition of pow" >&5
+printf "%s\n" "$as_me: WARNING: cannot find library containing definition of pow" >&2;} ;;
+esac
 fi
 
 fi
@@ -11099,12 +11354,12 @@ printf %s "checking working environ... " >&6; }
 if test -z "$ECL_WORKING_ENVIRON"; then
   if test "$cross_compiling" = yes
 then :
-  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "cannot run test program while cross compiling
-See \`config.log' for more details" "$LINENO" 5; }
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+See 'config.log' for more details" "$LINENO" 5; }
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <stdlib.h>
@@ -11118,11 +11373,13 @@ _ACEOF
 if ac_fn_c_try_run "$LINENO"
 then :
   ECL_WORKING_ENVIRON=yes
-else $as_nop
-  ECL_WORKING_ENVIRON=no
+else case e in #(
+  e) ECL_WORKING_ENVIRON=no ;;
+esac
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+  conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 
 fi
@@ -11153,8 +11410,8 @@ then :
 printf "%s\n" "#define HAVE_FEENABLEEXCEPT /**/" >>confdefs.h
 
 fi
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 
@@ -11190,12 +11447,14 @@ printf "%s\n" "#define HAVE_FEENABLEEXCEPT /**/" >>confdefs.h
 
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 printf "%s\n" "yes" >&6; }
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; } ;;
+esac
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+  conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 
   LIBS="${saved_libs}"
@@ -11228,8 +11487,9 @@ if test "x${enable_threads}" != "xno"; then
 if test "x$ac_cv_header_atomic_ops_h" = xyes
 then :
   system_libatomic=yes
-else $as_nop
-  system_libatomic=no
+else case e in #(
+  e) system_libatomic=no ;;
+esac
 fi
 
   if test "${system_libatomic}" = yes; then
@@ -11249,8 +11509,9 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   system_libatomic=yes
-else $as_nop
-  system_libatomic=no
+else case e in #(
+  e) system_libatomic=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
@@ -11549,8 +11810,8 @@ cat >confcache <<\_ACEOF
 # config.status only pays attention to the cache file if you give it
 # the --recheck option to rerun configure.
 #
-# `ac_cv_env_foo' variables (set or unset) will be overridden when
-# loading this file, other *unset* `ac_cv_foo' will be assigned the
+# 'ac_cv_env_foo' variables (set or unset) will be overridden when
+# loading this file, other *unset* 'ac_cv_foo' will be assigned the
 # following values.
 
 _ACEOF
@@ -11580,14 +11841,14 @@ printf "%s\n" "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;}
   (set) 2>&1 |
     case $as_nl`(ac_space=' '; set) 2>&1` in #(
     *${as_nl}ac_space=\ *)
-      # `set' does not quote correctly, so add quotes: double-quote
+      # 'set' does not quote correctly, so add quotes: double-quote
       # substitution turns \\\\ into \\, and sed turns \\ into \.
       sed -n \
 	"s/'/'\\\\''/g;
 	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"
       ;; #(
     *)
-      # `set' quotes correctly as required by POSIX, so do not add quotes.
+      # 'set' quotes correctly as required by POSIX, so do not add quotes.
       sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
       ;;
     esac |
@@ -11678,7 +11939,6 @@ cat >>$CONFIG_STATUS <<\_ASEOF || as_write_fail=1
 
 # Be more Bourne compatible
 DUALCASE=1; export DUALCASE # for MKS sh
-as_nop=:
 if test ${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
 then :
   emulate sh
@@ -11687,12 +11947,13 @@ then :
   # is contrary to our usage.  Disable this feature.
   alias -g '${1+"$@"}'='"$@"'
   setopt NO_GLOB_SUBST
-else $as_nop
-  case `(set -o) 2>/dev/null` in #(
+else case e in #(
+  e) case `(set -o) 2>/dev/null` in #(
   *posix*) :
     set -o posix ;; #(
   *) :
      ;;
+esac ;;
 esac
 fi
 
@@ -11764,7 +12025,7 @@ IFS=$as_save_IFS
 
      ;;
 esac
-# We did not find ourselves, most probably we were run as `sh COMMAND'
+# We did not find ourselves, most probably we were run as 'sh COMMAND'
 # in which case we are not to be found in the path.
 if test "x$as_myself" = x; then
   as_myself=$0
@@ -11793,7 +12054,6 @@ as_fn_error ()
 } # as_fn_error
 
 
-
 # as_fn_set_status STATUS
 # -----------------------
 # Set $? to STATUS, without forking.
@@ -11833,11 +12093,12 @@ then :
   {
     eval $1+=\$2
   }'
-else $as_nop
-  as_fn_append ()
+else case e in #(
+  e) as_fn_append ()
   {
     eval $1=\$$1\$2
-  }
+  } ;;
+esac
 fi # as_fn_append
 
 # as_fn_arith ARG...
@@ -11851,11 +12112,12 @@ then :
   {
     as_val=$(( $* ))
   }'
-else $as_nop
-  as_fn_arith ()
+else case e in #(
+  e) as_fn_arith ()
   {
     as_val=`expr "$@" || test $? -eq 1`
-  }
+  } ;;
+esac
 fi # as_fn_arith
 
 
@@ -11938,9 +12200,9 @@ if (echo >conf$$.file) 2>/dev/null; then
   if ln -s conf$$.file conf$$ 2>/dev/null; then
     as_ln_s='ln -s'
     # ... but there are two gotchas:
-    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
-    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
-    # In both cases, we have to default to `cp -pR'.
+    # 1) On MSYS, both 'ln -s file dir' and 'ln file dir' fail.
+    # 2) DJGPP < 2.04 has no symlinks; 'ln -s' creates a wrapper executable.
+    # In both cases, we have to default to 'cp -pR'.
     ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
       as_ln_s='cp -pR'
   elif ln conf$$.file conf$$ 2>/dev/null; then
@@ -12021,10 +12283,12 @@ as_test_x='test -x'
 as_executable_p=as_fn_executable_p
 
 # Sed expression to map a string onto a valid CPP name.
-as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+as_sed_cpp="y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g"
+as_tr_cpp="eval sed '$as_sed_cpp'" # deprecated
 
 # Sed expression to map a string onto a valid variable name.
-as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+as_sed_sh="y%*+%pp%;s%[^_$as_cr_alnum]%_%g"
+as_tr_sh="eval sed '$as_sed_sh'" # deprecated
 
 
 exec 6>&1
@@ -12040,7 +12304,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # values after options handling.
 ac_log="
 This file was extended by ecl $as_me 24.5.10, which was
-generated by GNU Autoconf 2.71.  Invocation command line was
+generated by GNU Autoconf 2.72.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
   CONFIG_HEADERS  = $CONFIG_HEADERS
@@ -12071,7 +12335,7 @@ _ACEOF
 
 cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 ac_cs_usage="\
-\`$as_me' instantiates files and other configuration actions
+'$as_me' instantiates files and other configuration actions
 from templates according to the current configuration.  Unless the files
 and actions are specified as TAGs, all are instantiated by default.
 
@@ -12104,10 +12368,10 @@ cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config='$ac_cs_config_escaped'
 ac_cs_version="\\
 ecl config.status 24.5.10
-configured by $0, generated by GNU Autoconf 2.71,
+configured by $0, generated by GNU Autoconf 2.72,
   with options \\"\$ac_cs_config\\"
 
-Copyright (C) 2021 Free Software Foundation, Inc.
+Copyright (C) 2023 Free Software Foundation, Inc.
 This config.status script is free software; the Free Software Foundation
 gives unlimited permission to copy, distribute and modify it."
 
@@ -12167,8 +12431,8 @@ do
     ac_need_defaults=false;;
   --he | --h)
     # Conflict between --help and --header
-    as_fn_error $? "ambiguous option: \`$1'
-Try \`$0 --help' for more information.";;
+    as_fn_error $? "ambiguous option: '$1'
+Try '$0 --help' for more information.";;
   --help | --hel | -h )
     printf "%s\n" "$ac_cs_usage"; exit ;;
   -q | -quiet | --quiet | --quie | --qui | --qu | --q \
@@ -12176,8 +12440,8 @@ Try \`$0 --help' for more information.";;
     ac_cs_silent=: ;;
 
   # This is an error.
-  -*) as_fn_error $? "unrecognized option: \`$1'
-Try \`$0 --help' for more information." ;;
+  -*) as_fn_error $? "unrecognized option: '$1'
+Try '$0 --help' for more information." ;;
 
   *) as_fn_append ac_config_targets " $1"
      ac_need_defaults=false ;;
@@ -12247,7 +12511,7 @@ do
     "ecl/config.h") CONFIG_HEADERS="$CONFIG_HEADERS ecl/config.h:ecl/configpre.h" ;;
     "ecl/config-internal.h") CONFIG_HEADERS="$CONFIG_HEADERS ecl/config-internal.h:ecl/configpre-int.h" ;;
 
-  *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
+  *) as_fn_error $? "invalid argument: '$ac_config_target'" "$LINENO" 5;;
   esac
 done
 
@@ -12266,7 +12530,7 @@ fi
 # creating and moving files from /tmp can sometimes cause problems.
 # Hook for its removal unless debugging.
 # Note that there is a small window in which the directory will not be cleaned:
-# after its creation but before its name has been assigned to `$tmp'.
+# after its creation but before its name has been assigned to '$tmp'.
 $debug ||
 {
   tmp= ac_tmp=
@@ -12290,7 +12554,7 @@ ac_tmp=$tmp
 
 # Set up the scripts for CONFIG_FILES section.
 # No need to generate them if there are no CONFIG_FILES.
-# This happens for instance with `./config.status config.h'.
+# This happens for instance with './config.status config.h'.
 if test -n "$CONFIG_FILES"; then
 
 
@@ -12448,13 +12712,13 @@ fi # test -n "$CONFIG_FILES"
 
 # Set up the scripts for CONFIG_HEADERS section.
 # No need to generate them if there are no CONFIG_HEADERS.
-# This happens for instance with `./config.status Makefile'.
+# This happens for instance with './config.status Makefile'.
 if test -n "$CONFIG_HEADERS"; then
 cat >"$ac_tmp/defines.awk" <<\_ACAWK ||
 BEGIN {
 _ACEOF
 
-# Transform confdefs.h into an awk script `defines.awk', embedded as
+# Transform confdefs.h into an awk script 'defines.awk', embedded as
 # here-document in config.status, that substitutes the proper values into
 # config.h.in to produce config.h.
 
@@ -12564,7 +12828,7 @@ do
   esac
   case $ac_mode$ac_tag in
   :[FHL]*:*);;
-  :L* | :C*:*) as_fn_error $? "invalid tag \`$ac_tag'" "$LINENO" 5;;
+  :L* | :C*:*) as_fn_error $? "invalid tag '$ac_tag'" "$LINENO" 5;;
   :[FH]-) ac_tag=-:-;;
   :[FH]*) ac_tag=$ac_tag:$ac_tag.in;;
   esac
@@ -12586,19 +12850,19 @@ do
       -) ac_f="$ac_tmp/stdin";;
       *) # Look for the file first in the build tree, then in the source tree
 	 # (if the path is not absolute).  The absolute path cannot be DOS-style,
-	 # because $ac_f cannot contain `:'.
+	 # because $ac_f cannot contain ':'.
 	 test -f "$ac_f" ||
 	   case $ac_f in
 	   [\\/$]*) false;;
 	   *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";;
 	   esac ||
-	   as_fn_error 1 "cannot find input file: \`$ac_f'" "$LINENO" 5;;
+	   as_fn_error 1 "cannot find input file: '$ac_f'" "$LINENO" 5;;
       esac
       case $ac_f in *\'*) ac_f=`printf "%s\n" "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
       as_fn_append ac_file_inputs " '$ac_f'"
     done
 
-    # Let's still pretend it is `configure' which instantiates (i.e., don't
+    # Let's still pretend it is 'configure' which instantiates (i.e., don't
     # use $as_me), people would be surprised to read:
     #    /* config.h.  Generated by config.status.  */
     configure_input='Generated from '`
@@ -12726,7 +12990,7 @@ cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 esac
 _ACEOF
 
-# Neutralize VPATH when `$srcdir' = `.'.
+# Neutralize VPATH when '$srcdir' = '.'.
 # Shell code in configure.ac might set extrasub.
 # FIXME: do we really want to maintain this feature?
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
@@ -12756,9 +13020,9 @@ test -z "$ac_datarootdir_hack$ac_datarootdir_seen" &&
   { ac_out=`sed -n '/\${datarootdir}/p' "$ac_tmp/out"`; test -n "$ac_out"; } &&
   { ac_out=`sed -n '/^[	 ]*datarootdir[	 ]*:*=/p' \
       "$ac_tmp/out"`; test -z "$ac_out"; } &&
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable 'datarootdir'
 which seems to be undefined.  Please make sure it is defined" >&5
-printf "%s\n" "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+printf "%s\n" "$as_me: WARNING: $ac_file contains a reference to the variable 'datarootdir'
 which seems to be undefined.  Please make sure it is defined" >&2;}
 
   rm -f "$ac_tmp/stdin"
@@ -12834,3 +13098,4 @@ fi
 
 
 for i in $srcdir/c/*/; do mkdir -p c/`basename $i`; done
+
diff --git a/src/ecl/configpre.h b/src/ecl/configpre.h
index 249ec5052..2403a3436 100644
--- a/src/ecl/configpre.h
+++ b/src/ecl/configpre.h
@@ -3,7 +3,7 @@
 /* Define if building universal (internal helper macro) */
 #undef AC_APPLE_UNIVERSAL_BUILD
 
-/* Define to 1 if the `closedir' function returns void instead of int. */
+/* Define to 1 if the 'closedir' function returns void instead of int. */
 #undef CLOSEDIR_VOID
 
 /* ECL_AVOID_FPE_H */
@@ -85,229 +85,229 @@
 /* GBC_BOEHM_PRECISE */
 #undef GBC_BOEHM_PRECISE
 
-/* Define to 1 if you have the `alarm' function. */
+/* Define to 1 if you have the 'alarm' function. */
 #undef HAVE_ALARM
 
-/* Define to 1 if you have the `backtrace' function. */
+/* Define to 1 if you have the 'backtrace' function. */
 #undef HAVE_BACKTRACE
 
-/* Define to 1 if you have the `backtrace_symbols' function. */
+/* Define to 1 if you have the 'backtrace_symbols' function. */
 #undef HAVE_BACKTRACE_SYMBOLS
 
-/* Define to 1 if you have the `cabs' function. */
+/* Define to 1 if you have the 'cabs' function. */
 #undef HAVE_CABS
 
-/* Define to 1 if you have the `cabsf' function. */
+/* Define to 1 if you have the 'cabsf' function. */
 #undef HAVE_CABSF
 
-/* Define to 1 if you have the `cabsl' function. */
+/* Define to 1 if you have the 'cabsl' function. */
 #undef HAVE_CABSL
 
-/* Define to 1 if you have the `cacos' function. */
+/* Define to 1 if you have the 'cacos' function. */
 #undef HAVE_CACOS
 
-/* Define to 1 if you have the `cacosf' function. */
+/* Define to 1 if you have the 'cacosf' function. */
 #undef HAVE_CACOSF
 
-/* Define to 1 if you have the `cacosh' function. */
+/* Define to 1 if you have the 'cacosh' function. */
 #undef HAVE_CACOSH
 
-/* Define to 1 if you have the `cacoshf' function. */
+/* Define to 1 if you have the 'cacoshf' function. */
 #undef HAVE_CACOSHF
 
-/* Define to 1 if you have the `cacoshl' function. */
+/* Define to 1 if you have the 'cacoshl' function. */
 #undef HAVE_CACOSHL
 
-/* Define to 1 if you have the `cacosl' function. */
+/* Define to 1 if you have the 'cacosl' function. */
 #undef HAVE_CACOSL
 
-/* Define to 1 if you have the `casin' function. */
+/* Define to 1 if you have the 'casin' function. */
 #undef HAVE_CASIN
 
-/* Define to 1 if you have the `casinf' function. */
+/* Define to 1 if you have the 'casinf' function. */
 #undef HAVE_CASINF
 
-/* Define to 1 if you have the `casinh' function. */
+/* Define to 1 if you have the 'casinh' function. */
 #undef HAVE_CASINH
 
-/* Define to 1 if you have the `casinhf' function. */
+/* Define to 1 if you have the 'casinhf' function. */
 #undef HAVE_CASINHF
 
-/* Define to 1 if you have the `casinhl' function. */
+/* Define to 1 if you have the 'casinhl' function. */
 #undef HAVE_CASINHL
 
-/* Define to 1 if you have the `casinl' function. */
+/* Define to 1 if you have the 'casinl' function. */
 #undef HAVE_CASINL
 
-/* Define to 1 if you have the `catan' function. */
+/* Define to 1 if you have the 'catan' function. */
 #undef HAVE_CATAN
 
-/* Define to 1 if you have the `catanf' function. */
+/* Define to 1 if you have the 'catanf' function. */
 #undef HAVE_CATANF
 
-/* Define to 1 if you have the `catanh' function. */
+/* Define to 1 if you have the 'catanh' function. */
 #undef HAVE_CATANH
 
-/* Define to 1 if you have the `catanhf' function. */
+/* Define to 1 if you have the 'catanhf' function. */
 #undef HAVE_CATANHF
 
-/* Define to 1 if you have the `catanhl' function. */
+/* Define to 1 if you have the 'catanhl' function. */
 #undef HAVE_CATANHL
 
-/* Define to 1 if you have the `catanl' function. */
+/* Define to 1 if you have the 'catanl' function. */
 #undef HAVE_CATANL
 
-/* Define to 1 if you have the `ccos' function. */
+/* Define to 1 if you have the 'ccos' function. */
 #undef HAVE_CCOS
 
-/* Define to 1 if you have the `ccosf' function. */
+/* Define to 1 if you have the 'ccosf' function. */
 #undef HAVE_CCOSF
 
-/* Define to 1 if you have the `ccosh' function. */
+/* Define to 1 if you have the 'ccosh' function. */
 #undef HAVE_CCOSH
 
-/* Define to 1 if you have the `ccoshf' function. */
+/* Define to 1 if you have the 'ccoshf' function. */
 #undef HAVE_CCOSHF
 
-/* Define to 1 if you have the `ccoshl' function. */
+/* Define to 1 if you have the 'ccoshl' function. */
 #undef HAVE_CCOSHL
 
-/* Define to 1 if you have the `ccosl' function. */
+/* Define to 1 if you have the 'ccosl' function. */
 #undef HAVE_CCOSL
 
-/* Define to 1 if you have the `ceilf' function. */
+/* Define to 1 if you have the 'ceilf' function. */
 #undef HAVE_CEILF
 
-/* Define to 1 if you have the `cexp' function. */
+/* Define to 1 if you have the 'cexp' function. */
 #undef HAVE_CEXP
 
-/* Define to 1 if you have the `cexpf' function. */
+/* Define to 1 if you have the 'cexpf' function. */
 #undef HAVE_CEXPF
 
-/* Define to 1 if you have the `cexpl' function. */
+/* Define to 1 if you have the 'cexpl' function. */
 #undef HAVE_CEXPL
 
-/* Define to 1 if you have the `cimag' function. */
+/* Define to 1 if you have the 'cimag' function. */
 #undef HAVE_CIMAG
 
-/* Define to 1 if you have the `cimagf' function. */
+/* Define to 1 if you have the 'cimagf' function. */
 #undef HAVE_CIMAGF
 
-/* Define to 1 if you have the `cimagl' function. */
+/* Define to 1 if you have the 'cimagl' function. */
 #undef HAVE_CIMAGL
 
-/* Define to 1 if you have the `clock_gettime' function. */
+/* Define to 1 if you have the 'clock_gettime' function. */
 #undef HAVE_CLOCK_GETTIME
 
-/* Define to 1 if you have the `clog' function. */
+/* Define to 1 if you have the 'clog' function. */
 #undef HAVE_CLOG
 
-/* Define to 1 if you have the `clogf' function. */
+/* Define to 1 if you have the 'clogf' function. */
 #undef HAVE_CLOGF
 
-/* Define to 1 if you have the `clogl' function. */
+/* Define to 1 if you have the 'clogl' function. */
 #undef HAVE_CLOGL
 
-/* Define to 1 if you have the `conj' function. */
+/* Define to 1 if you have the 'conj' function. */
 #undef HAVE_CONJ
 
-/* Define to 1 if you have the `conjf' function. */
+/* Define to 1 if you have the 'conjf' function. */
 #undef HAVE_CONJF
 
-/* Define to 1 if you have the `conjl' function. */
+/* Define to 1 if you have the 'conjl' function. */
 #undef HAVE_CONJL
 
-/* Define to 1 if you have the `copysign' function. */
+/* Define to 1 if you have the 'copysign' function. */
 #undef HAVE_COPYSIGN
 
-/* Define to 1 if you have the `cosf' function. */
+/* Define to 1 if you have the 'cosf' function. */
 #undef HAVE_COSF
 
-/* Define to 1 if you have the `coshf' function. */
+/* Define to 1 if you have the 'coshf' function. */
 #undef HAVE_COSHF
 
-/* Define to 1 if you have the `cpow' function. */
+/* Define to 1 if you have the 'cpow' function. */
 #undef HAVE_CPOW
 
-/* Define to 1 if you have the `cpowf' function. */
+/* Define to 1 if you have the 'cpowf' function. */
 #undef HAVE_CPOWF
 
-/* Define to 1 if you have the `cpowl' function. */
+/* Define to 1 if you have the 'cpowl' function. */
 #undef HAVE_CPOWL
 
-/* Define to 1 if you have the `creal' function. */
+/* Define to 1 if you have the 'creal' function. */
 #undef HAVE_CREAL
 
-/* Define to 1 if you have the `crealf' function. */
+/* Define to 1 if you have the 'crealf' function. */
 #undef HAVE_CREALF
 
-/* Define to 1 if you have the `creall' function. */
+/* Define to 1 if you have the 'creall' function. */
 #undef HAVE_CREALL
 
-/* Define to 1 if you have the `csin' function. */
+/* Define to 1 if you have the 'csin' function. */
 #undef HAVE_CSIN
 
-/* Define to 1 if you have the `csinf' function. */
+/* Define to 1 if you have the 'csinf' function. */
 #undef HAVE_CSINF
 
-/* Define to 1 if you have the `csinh' function. */
+/* Define to 1 if you have the 'csinh' function. */
 #undef HAVE_CSINH
 
-/* Define to 1 if you have the `csinhf' function. */
+/* Define to 1 if you have the 'csinhf' function. */
 #undef HAVE_CSINHF
 
-/* Define to 1 if you have the `csinhl' function. */
+/* Define to 1 if you have the 'csinhl' function. */
 #undef HAVE_CSINHL
 
-/* Define to 1 if you have the `csinl' function. */
+/* Define to 1 if you have the 'csinl' function. */
 #undef HAVE_CSINL
 
-/* Define to 1 if you have the `csqrt' function. */
+/* Define to 1 if you have the 'csqrt' function. */
 #undef HAVE_CSQRT
 
-/* Define to 1 if you have the `csqrtf' function. */
+/* Define to 1 if you have the 'csqrtf' function. */
 #undef HAVE_CSQRTF
 
-/* Define to 1 if you have the `csqrtl' function. */
+/* Define to 1 if you have the 'csqrtl' function. */
 #undef HAVE_CSQRTL
 
-/* Define to 1 if you have the `ctan' function. */
+/* Define to 1 if you have the 'ctan' function. */
 #undef HAVE_CTAN
 
-/* Define to 1 if you have the `ctanf' function. */
+/* Define to 1 if you have the 'ctanf' function. */
 #undef HAVE_CTANF
 
-/* Define to 1 if you have the `ctanh' function. */
+/* Define to 1 if you have the 'ctanh' function. */
 #undef HAVE_CTANH
 
-/* Define to 1 if you have the `ctanhf' function. */
+/* Define to 1 if you have the 'ctanhf' function. */
 #undef HAVE_CTANHF
 
-/* Define to 1 if you have the `ctanhl' function. */
+/* Define to 1 if you have the 'ctanhl' function. */
 #undef HAVE_CTANHL
 
-/* Define to 1 if you have the `ctanl' function. */
+/* Define to 1 if you have the 'ctanl' function. */
 #undef HAVE_CTANL
 
 /* Define to 1 if you have the <dirent.h> header file. */
 #undef HAVE_DIRENT_H
 
-/* Define to 1 if you have the `dladdr' function. */
+/* Define to 1 if you have the 'dladdr' function. */
 #undef HAVE_DLADDR
 
 /* Define to 1 if you have the <dlfcn.h> header file. */
 #undef HAVE_DLFCN_H
 
-/* Define to 1 if the system has the type `double complex'. */
+/* Define to 1 if the system has the type 'double complex'. */
 #undef HAVE_DOUBLE_COMPLEX
 
 /* HAVE_ENVIRON */
 #undef HAVE_ENVIRON
 
-/* Define to 1 if you have the `expf' function. */
+/* Define to 1 if you have the 'expf' function. */
 #undef HAVE_EXPF
 
-/* Define to 1 if you have the `fabsf' function. */
+/* Define to 1 if you have the 'fabsf' function. */
 #undef HAVE_FABSF
 
 /* Define to 1 if you have the <fcntl.h> header file. */
@@ -319,61 +319,61 @@
 /* Define to 1 if you have the <fenv.h> header file. */
 #undef HAVE_FENV_H
 
-/* Define to 1 if the system has the type `float complex'. */
+/* Define to 1 if the system has the type 'float complex'. */
 #undef HAVE_FLOAT_COMPLEX
 
 /* Define to 1 if you have the <float.h> header file. */
 #undef HAVE_FLOAT_H
 
-/* Define to 1 if you have the `floor' function. */
+/* Define to 1 if you have the 'floor' function. */
 #undef HAVE_FLOOR
 
-/* Define to 1 if you have the `floorf' function. */
+/* Define to 1 if you have the 'floorf' function. */
 #undef HAVE_FLOORF
 
-/* Define to 1 if you have the `fork' function. */
+/* Define to 1 if you have the 'fork' function. */
 #undef HAVE_FORK
 
-/* Define to 1 if you have the `frexpf' function. */
+/* Define to 1 if you have the 'frexpf' function. */
 #undef HAVE_FREXPF
 
-/* Define to 1 if you have the `fseeko' function. */
+/* Define to 1 if you have the 'fseeko' function. */
 #undef HAVE_FSEEKO
 
-/* Define to 1 if you have the `getcwd' function. */
+/* Define to 1 if you have the 'getcwd' function. */
 #undef HAVE_GETCWD
 
-/* Define to 1 if you have the `gethostbyaddr' function. */
+/* Define to 1 if you have the 'gethostbyaddr' function. */
 #undef HAVE_GETHOSTBYADDR
 
-/* Define to 1 if you have the `gethostbyname' function. */
+/* Define to 1 if you have the 'gethostbyname' function. */
 #undef HAVE_GETHOSTBYNAME
 
-/* Define to 1 if you have the `getpagesize' function. */
+/* Define to 1 if you have the 'getpagesize' function. */
 #undef HAVE_GETPAGESIZE
 
-/* Define to 1 if you have the `getrusage' function. */
+/* Define to 1 if you have the 'getrusage' function. */
 #undef HAVE_GETRUSAGE
 
-/* Define to 1 if you have the `gettimeofday' function. */
+/* Define to 1 if you have the 'gettimeofday' function. */
 #undef HAVE_GETTIMEOFDAY
 
 /* Define to 1 if you have the <inttypes.h> header file. */
 #undef HAVE_INTTYPES_H
 
-/* Define to 1 if you have the `isatty' function. */
+/* Define to 1 if you have the 'isatty' function. */
 #undef HAVE_ISATTY
 
-/* Define to 1 if you have the `ldexpf' function. */
+/* Define to 1 if you have the 'ldexpf' function. */
 #undef HAVE_LDEXPF
 
 /* HAVE_LIBFFI */
 #undef HAVE_LIBFFI
 
-/* Define to 1 if you have the `gc' library (-lgc). */
+/* Define to 1 if you have the 'gc' library (-lgc). */
 #undef HAVE_LIBGC
 
-/* Define to 1 if you have the `sun' library (-lsun). */
+/* Define to 1 if you have the 'sun' library (-lsun). */
 #undef HAVE_LIBSUN
 
 /* Define to 1 if you have the <limits.h> header file. */
@@ -382,50 +382,50 @@
 /* Define to 1 if you have the <link.h> header file. */
 #undef HAVE_LINK_H
 
-/* Define to 1 if you have the `log1p' function. */
+/* Define to 1 if you have the 'log1p' function. */
 #undef HAVE_LOG1P
 
-/* Define to 1 if you have the `log1pf' function. */
+/* Define to 1 if you have the 'log1pf' function. */
 #undef HAVE_LOG1PF
 
-/* Define to 1 if you have the `log1pl' function. */
+/* Define to 1 if you have the 'log1pl' function. */
 #undef HAVE_LOG1PL
 
-/* Define to 1 if you have the `logf' function. */
+/* Define to 1 if you have the 'logf' function. */
 #undef HAVE_LOGF
 
-/* Define to 1 if the system has the type `long complex'. */
+/* Define to 1 if the system has the type 'long complex'. */
 #undef HAVE_LONG_COMPLEX
 
-/* Define to 1 if you have the `lstat' function. */
+/* Define to 1 if you have the 'lstat' function. */
 #undef HAVE_LSTAT
 
 /* Define to 1 if you have the <mach-o/dyld.h> header file. */
 #undef HAVE_MACH_O_DYLD_H
 
-/* Define to 1 if your system has a GNU libc compatible `malloc' function, and
+/* Define to 1 if your system has a GNU libc compatible 'malloc' function, and
    to 0 otherwise. */
 #undef HAVE_MALLOC
 
-/* Define to 1 if you have the `memmove' function. */
+/* Define to 1 if you have the 'memmove' function. */
 #undef HAVE_MEMMOVE
 
-/* Define to 1 if you have the `memset' function. */
+/* Define to 1 if you have the 'memset' function. */
 #undef HAVE_MEMSET
 
-/* Define to 1 if you have the `mkdir' function. */
+/* Define to 1 if you have the 'mkdir' function. */
 #undef HAVE_MKDIR
 
-/* Define to 1 if you have the `mkstemp' function. */
+/* Define to 1 if you have the 'mkstemp' function. */
 #undef HAVE_MKSTEMP
 
-/* Define to 1 if you have a working `mmap' system call. */
+/* Define to 1 if you have a working 'mmap' system call. */
 #undef HAVE_MMAP
 
-/* Define to 1 if you have the `nanosleep' function. */
+/* Define to 1 if you have the 'nanosleep' function. */
 #undef HAVE_NANOSLEEP
 
-/* Define to 1 if you have the <ndir.h> header file, and it defines `DIR'. */
+/* Define to 1 if you have the <ndir.h> header file, and it defines 'DIR'. */
 #undef HAVE_NDIR_H
 
 /* Define to 1 if you have the <netdb.h> header file. */
@@ -437,62 +437,62 @@
 /* HAVE_POSIX_RWLOCK */
 #undef HAVE_POSIX_RWLOCK
 
-/* Define to 1 if you have the `powf' function. */
+/* Define to 1 if you have the 'powf' function. */
 #undef HAVE_POWF
 
-/* Define to 1 if you have the `pthread_condattr_setclock' function. */
+/* Define to 1 if you have the 'pthread_condattr_setclock' function. */
 #undef HAVE_PTHREAD_CONDATTR_SETCLOCK
 
-/* Define to 1 if you have the `pthread_mutex_timedlock' function. */
+/* Define to 1 if you have the 'pthread_mutex_timedlock' function. */
 #undef HAVE_PTHREAD_MUTEX_TIMEDLOCK
 
-/* Define to 1 if the system has the type `pthread_rwlock_t'. */
+/* Define to 1 if the system has the type 'pthread_rwlock_t'. */
 #undef HAVE_PTHREAD_RWLOCK_T
 
-/* Define to 1 if the system has the type `ptrdiff_t'. */
+/* Define to 1 if the system has the type 'ptrdiff_t'. */
 #undef HAVE_PTRDIFF_T
 
-/* Define to 1 if you have the `putenv' function. */
+/* Define to 1 if you have the 'putenv' function. */
 #undef HAVE_PUTENV
 
 /* Define to 1 if you have the <pwd.h> header file. */
 #undef HAVE_PWD_H
 
-/* Define to 1 if your system has a GNU libc compatible `realloc' function,
+/* Define to 1 if your system has a GNU libc compatible 'realloc' function,
    and to 0 otherwise. */
 #undef HAVE_REALLOC
 
 /* Define to 1 if you have the <sched.h> header file. */
 #undef HAVE_SCHED_H
 
-/* Define to 1 if you have the `sched_yield' function. */
+/* Define to 1 if you have the 'sched_yield' function. */
 #undef HAVE_SCHED_YIELD
 
-/* Define to 1 if you have the `select' function. */
+/* Define to 1 if you have the 'select' function. */
 #undef HAVE_SELECT
 
-/* Define to 1 if you have the `setenv' function. */
+/* Define to 1 if you have the 'setenv' function. */
 #undef HAVE_SETENV
 
-/* Define to 1 if you have the `sigprocmask' function. */
+/* Define to 1 if you have the 'sigprocmask' function. */
 #undef HAVE_SIGPROCMASK
 
-/* Define to 1 if you have the `sinf' function. */
+/* Define to 1 if you have the 'sinf' function. */
 #undef HAVE_SINF
 
-/* Define to 1 if you have the `sinhf' function. */
+/* Define to 1 if you have the 'sinhf' function. */
 #undef HAVE_SINHF
 
-/* Define to 1 if you have the `socket' function. */
+/* Define to 1 if you have the 'socket' function. */
 #undef HAVE_SOCKET
 
-/* Define to 1 if you have the `sqrt' function. */
+/* Define to 1 if you have the 'sqrt' function. */
 #undef HAVE_SQRT
 
-/* Define to 1 if you have the `sqrtf' function. */
+/* Define to 1 if you have the 'sqrtf' function. */
 #undef HAVE_SQRTF
 
-/* Define to 1 if `stat' has the bug that it succeeds when given the
+/* Define to 1 if 'stat' has the bug that it succeeds when given the
    zero-length file name argument. */
 #undef HAVE_STAT_EMPTY_STRING_BUG
 
@@ -511,13 +511,13 @@
 /* Define to 1 if you have the <stdlib.h> header file. */
 #undef HAVE_STDLIB_H
 
-/* Define to 1 if you have the `strcasecmp' function. */
+/* Define to 1 if you have the 'strcasecmp' function. */
 #undef HAVE_STRCASECMP
 
-/* Define to 1 if you have the `strchr' function. */
+/* Define to 1 if you have the 'strchr' function. */
 #undef HAVE_STRCHR
 
-/* Define to 1 if you have the `strerror' function. */
+/* Define to 1 if you have the 'strerror' function. */
 #undef HAVE_STRERROR
 
 /* Define to 1 if you have the <strings.h> header file. */
@@ -526,13 +526,13 @@
 /* Define to 1 if you have the <string.h> header file. */
 #undef HAVE_STRING_H
 
-/* Define to 1 if you have the `strtol' function. */
+/* Define to 1 if you have the 'strtol' function. */
 #undef HAVE_STRTOL
 
-/* Define to 1 if you have the `system' function. */
+/* Define to 1 if you have the 'system' function. */
 #undef HAVE_SYSTEM
 
-/* Define to 1 if you have the <sys/dir.h> header file, and it defines `DIR'.
+/* Define to 1 if you have the <sys/dir.h> header file, and it defines 'DIR'.
    */
 #undef HAVE_SYS_DIR_H
 
@@ -542,7 +542,7 @@
 /* HAVE_SYS_MMAN_H */
 #undef HAVE_SYS_MMAN_H
 
-/* Define to 1 if you have the <sys/ndir.h> header file, and it defines `DIR'.
+/* Define to 1 if you have the <sys/ndir.h> header file, and it defines 'DIR'.
    */
 #undef HAVE_SYS_NDIR_H
 
@@ -573,28 +573,28 @@
 /* Define to 1 if you have the <sys/wait.h> header file. */
 #undef HAVE_SYS_WAIT_H
 
-/* Define to 1 if you have the `tanf' function. */
+/* Define to 1 if you have the 'tanf' function. */
 #undef HAVE_TANF
 
-/* Define to 1 if you have the `tanhf' function. */
+/* Define to 1 if you have the 'tanhf' function. */
 #undef HAVE_TANHF
 
-/* Define to 1 if you have the `times' function. */
+/* Define to 1 if you have the 'times' function. */
 #undef HAVE_TIMES
 
-/* Define to 1 if you have the `tzset' function. */
+/* Define to 1 if you have the 'tzset' function. */
 #undef HAVE_TZSET
 
 /* Define to 1 if you have the <ulimit.h> header file. */
 #undef HAVE_ULIMIT_H
 
-/* Define to 1 if you have the `uname' function. */
+/* Define to 1 if you have the 'uname' function. */
 #undef HAVE_UNAME
 
 /* Define to 1 if you have the <unistd.h> header file. */
 #undef HAVE_UNISTD_H
 
-/* Define to 1 if you have the `vfork' function. */
+/* Define to 1 if you have the 'vfork' function. */
 #undef HAVE_VFORK
 
 /* Define to 1 if you have the <vfork.h> header file. */
@@ -603,16 +603,16 @@
 /* Define to 1 if you have the <wchar.h> header file. */
 #undef HAVE_WCHAR_H
 
-/* Define to 1 if `fork' works. */
+/* Define to 1 if 'fork' works. */
 #undef HAVE_WORKING_FORK
 
-/* Define to 1 if `vfork' works. */
+/* Define to 1 if 'vfork' works. */
 #undef HAVE_WORKING_VFORK
 
-/* Define to 1 if the system has the type `_Bool'. */
+/* Define to 1 if the system has the type '_Bool'. */
 #undef HAVE__BOOL
 
-/* Define to 1 if `lstat' dereferences a symlink specified with a trailing
+/* Define to 1 if 'lstat' dereferences a symlink specified with a trailing
    slash. */
 #undef LSTAT_FOLLOWS_SLASHED_SYMLINK
 
@@ -634,19 +634,19 @@
 /* Define to the version of this package. */
 #undef PACKAGE_VERSION
 
-/* Define as the return type of signal handlers (`int' or `void'). */
+/* Define as the return type of signal handlers ('int' or 'void'). */
 #undef RETSIGTYPE
 
-/* Define to the type of arg 1 for `select'. */
+/* Define to the type of arg 1 for 'select'. */
 #undef SELECT_TYPE_ARG1
 
-/* Define to the type of args 2, 3 and 4 for `select'. */
+/* Define to the type of args 2, 3 and 4 for 'select'. */
 #undef SELECT_TYPE_ARG234
 
-/* Define to the type of arg 5 for `select'. */
+/* Define to the type of arg 5 for 'select'. */
 #undef SELECT_TYPE_ARG5
 
-/* Define to 1 if all of the C90 standard headers exist (not just the ones
+/* Define to 1 if all of the C89 standard headers exist (not just the ones
    required in a freestanding environment). This macro is provided for
    backward compatibility; new code need not use it. */
 #undef STDC_HEADERS
@@ -655,7 +655,7 @@
    macro is obsolete. */
 #undef TIME_WITH_SYS_TIME
 
-/* Define to 1 if your <sys/time.h> declares `struct tm'. */
+/* Define to 1 if your <sys/time.h> declares 'struct tm'. */
 #undef TM_IN_SYS_TIME
 
 /* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most
@@ -685,7 +685,7 @@
    #define below would cause a syntax error. */
 #undef _UINT8_T
 
-/* Define to empty if `const' does not conform to ANSI C. */
+/* Define to empty if 'const' does not conform to ANSI C. */
 #undef const
 
 /* ecl_int16_t */
@@ -718,7 +718,7 @@
 /* compiler understands long long */
 #undef ecl_ulong_long_t
 
-/* Define to `__inline__' or `__inline' if that's what the C compiler
+/* Define to '__inline__' or '__inline' if that's what the C compiler
    calls it, or to nothing if 'inline' is not supported under any name.  */
 #ifndef __cplusplus
 #undef inline
@@ -749,7 +749,7 @@
 /* Define to rpl_realloc if the replacement function should be used. */
 #undef realloc
 
-/* Define to `unsigned int' if <sys/types.h> does not define. */
+/* Define as 'unsigned int' if <stddef.h> doesn't define. */
 #undef size_t
 
 /* Define to the type of an unsigned integer type of width exactly 16 bits if
@@ -768,9 +768,9 @@
    such a type exists and the standard includes do not define it. */
 #undef uint8_t
 
-/* Define as `fork' if `vfork' does not work. */
+/* Define as 'fork' if 'vfork' does not work. */
 #undef vfork
 
-/* Define to empty if the keyword `volatile' does not work. Warning: valid
-   code using `volatile' can become incorrect without. Disable with care. */
+/* Define to empty if the keyword 'volatile' does not work. Warning: valid
+   code using 'volatile' can become incorrect without. Disable with care. */
 #undef volatile
diff --git a/src/gmp/invalid.c b/src/gmp/invalid.c
index e9a4ce169..08f9b1421 100644
--- a/src/gmp/invalid.c
+++ b/src/gmp/invalid.c
@@ -39,7 +39,7 @@ MA 02110-1301, USA. */
 /* Incidentally, kill is not available on mingw, but that's ok, it has raise
    and we'll be using that.  */
 #if ! HAVE_RAISE
-#define raise(sig)   kill (getpid(), sig)
+#define raise(sig)   /* kill (getpid(), sig) */
 #endif