* src/m/hp800.h (HAVE_ALLOCA):
* src/m/ibms390x.h (HAVE_ALLOCA): Do not define, no longer needed.
* msdos/sed2v2.inp: Do not edit HAVE_ALLOCA.
* admin/CPP-DEFINES: Remove HAVE_ALLOCA.
* configure.in: Do not preprocess src/Makefile.in.
(cpp_undefs, CPP_NEED_TRADITIONAL): Remove.
(AC_EGREP_CPP): Test no longer needed.
* configure: Regenerate.
* config.bat: Do not preprocess src/Makefile.in.
* make-dist: No more Makefile.c files.
* INSTALL, src/README: Makefiles are not preprocessed.
* src/Makefile.in, src/autodeps.mk, src/deps.mk, src/ns.mk:
Convert comments to Makefile format.
* lib-src/Makefile.in (distclean): No more Makefile.c.
* src/Makefile.in (bootstrap-clean): No more Makefile.c.
* admin/notes/cpp: Remove file.
* admin/quick-install-emacs (AVOID): No more Makefile.c files.
* etc/PROBLEMS, etc/MACHINES: Remove details of cpp problems which can
no longer occur.
* configure.in: Generate lib-src/Makefile directly, do not run cpp.
* config.bat: Do not run cpp on lib-src/Makefile.in.
* lib-src/Makefile.in: Convert comments to makefile format.
* admin/notes/cpp: lib-src/Makefile not preprocessed.
* configure.in (LD_SWITCH_SYSTEM): Set with configure, not cpp.
Merges logic from src/s/* and src/Makefile.in.
(LD_SWITCH_SYSTEM_TEMACS): New output variable.
* src/Makefile.in (LD_SWITCH_SYSTEM): Set with configure, not cpp.
(LD_SWITCH_SYSTEM_EXTRA): New variable, set by configure.
(TEMACS_LDFLAGS): Use $LD_SWITCH_SYSTEM and $LD_SWITCH_SYSTEM_EXTRA,
move out of cpp section.
* src/s/freebsd.h (LD_SWITCH_SYSTEM):
* src/s/gnu-linux.h (LD_SWITCH_SYSTEM):
* src/s/netbsd.h (LD_SWITCH_SYSTEM):
* admin/CPP-DEFINES: Remove LD_SWITCH_SYSTEM.
* configure.in (LIBXTR6): New output variable. Move unixware special
case here from src/s/unixware.h.
* src/Makefile.in (LIBXTR6): Set with configure, not cpp.
* src/s/unixware.h (NEED_LIBW): Remove definition.
* admin/CPP-DEFINES: Remove NEED_LIBW.
* configure.in (HAVE_MOTIF_2_1): Remove unused variable.
(LIBXP): No longer substitute in Makefiles.
(MOTIF_LIBW): New output variable. Move system-specific settings here
from src/s files.
* src/Makefile.in (LIBXP): Remove, since included in MOTIF_LIBW.
(MOTIF_LIBW): Set with configure, not cpp.
* s/aix4-2.h (LIB_MOTIF):
* s/gnu-linux.h (LIB_MOTIF):
* s/unixware.h (LIB_MOTIF): Move to configure.in.
* admin/CPP-DEFINES: Remove LIB_MOTIF.
* Makefile.in (LIBX11_SYSTEM): Remove.
* s/msdos.h (LIBX11_SYSTEM): Do not define, define LIBS_SYSTEM
instead.
* configure.in: Remove all references to LIBX11_SYSTEM.