* configure.ac (AH_BOTTOM): Use an include file, so that the
contents do not get processed by autoheader. Eg this prevents undefs
being commented out, and is the recommended technique from the
autoconf manual.
* src/conf_post.h: New, split from configure.ac's AH_BOTTOM.
* src/Makefile.in (config_h): Add conf_post.h.
* src/makefile.w32-in (CONFIG_H): Add conf_post.h.
* Makefile.in (MAKEFILE_NAME): New macro.
($(MAKEFILE_NAME)): Rename rule from Makefile.
* configure.ac (epaths): Set MAKEFILE_NAME to a bogus value,
so that GNU 'make' isn't tempted to make the Makefile and then
regenerate config.status while config.status is running.
Fixes: debbugs:11214
* configure.ac (TIOCSIGSEND): Move here from src/s.
* src/s/usg5-4-common.h (TIOCSIGSEND): Let configure set it.
* src/s/irix6-5.h (TIOCSIGSEND): No more need to undefine.
* configure.ac (SIGNAL_H_AHB): New hack macro.
(opsysfile): Set to empty on netbsd, openbsd.
(AH_BOTTOM): Include signal.h if SIGNAL_H_AHB is defined.
* src/s/netbsd.h: Let configure include signal.h if needed.
Remove file, which is now empty.
* configure.ac (_longjmp, _setjmp): Move here from src/s.
* src/s/usg5-4-common.h (_longjmp, _setjmp): Let configure set them.
* src/s/irix6-5.h (_longjmp, _setjmp): No more need to undefine.
* configure.ac (opsysfile): Set to empty on freebsd, gnu-linux,
gnu-kfreebsd; and to usg5-4-common.h on sol2*, unixware.
* src/s/freebsd.h, src/s/gnu-linux.h, src/s/sol2-6.h, src/s/unixware.h:
Remove empty files.
* .bzrignore: Add lib/stdalign.h.
* config.bat: Do not set NO_DECL_ALIGN; no longer needed.
Copy lib/stdalign.in.h to lib/stdalign.in-h as needed.
* configure.ac (HAVE_ATTRIBUTE_ALIGNED): Remove the code that
fiddles with this, as gnulib now does this for us.
* admin/merge-gnulib: Add environ, stdalign.
* m4/environ.m4: New file, from gnulib.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
* lib/stdalign.in.h, m4/stdalign.m4: New files, from gnulib.
* sed2v2.inp (HAVE_ATTRIBUTE_ALIGNED): Remove edit.
* sedlibmk.inp (STDALIGN_H, @GL_GENERATE_STDALIGN_H_TRUE@)
(GL_GENERATE_STDALIGN_H_FALSE): New edits.
* nt/config.nt (HAVE_ATTRIBUTE_ALIGNED): Remove.
* src/alloc.c (XMALLOC_BASE_ALIGNMENT, GC_POINTER_ALIGNMENT, pure_alloc):
Simplify by using alignof.
(pure_alloc) [! USE_LSB_TAG]: Don't over-align EMACS_INT values.
* src/lisp.h: Include <stdalign.h>.
(GCALIGNMENT): New macro and constant.
(DECL_ALIGN): Remove. All uses replaced by alignas (GCALIGNMENT).
(USE_LSB_TAG): ifdef on alignas, not on DECL_ALIGN.
(stdalign): New macro, if not already defined.
* configure.ac: Configure gnulib at the end, not before running
pkg-config. This restores the behavior before 2012-06-22, when
higher-resolution time stamps were added, and fixes a bug whereby
LIB_PTHREAD was not used and gnulib's part of 'configure'
therefore incorrectly assumed that pthread_sigmask wasn't working.
Fix the problem with -lrt and clock_gettime a different way.
This should complete the fix for Bug#11884.
(pre_PKG_CONFIG_CFLAGS, pre_PKG_CONFIG_LIBS): New shell vars.
* configure.ac (opsysfile): Set to empty on gnu, cygwin.
* src/s/bsd-common, src/s/cygwin.h: Remove empty files.
* src/s/freebsd.h, src/s/netbsd.h: Do not include bsd-common.h.
* configure.ac (GNU_LIBRARY_PENDING_OUTPUT_COUNT): Move here from src/s.
* src/s/gnu.h, src/s/gnu-linux.h:
Move GNU_LIBRARY_PENDING_OUTPUT_COUNT to configure.
* configure.ac (DEFAULT_SOUND_DEVICE): New definition.
* src/sound.c (DEFAULT_SOUND_DEVICE) [!WINDOWSNT]:
* src/s/netbsd.h (DEFAULT_SOUND_DEVICE): Let configure set it.
Merge from gnulib to make "#define unix" unnecessary, incorporating:
2012-07-10 getloadavg: clean out old Emacs and Autoconf cruft
2012-07-09 getopt: Simplify after Emacs changed.
* src/s/aix4-2.h (unix): Remove; no longer needed.
