Merge from Gnulib; use ‘open’ for O_CLOEXEC
This incorporates:
2017-08-15 renameat: ensure declaration in <stdio.h> on NetBSD
2017-08-15 extensions: enable NetBSD specific extensions
2017-08-14 open: support O_CLOEXEC
2017-08-13 reallocarray: new module
* admin/merge-gnulib (AVOIDED_MODULES): Remove ‘open’, since
it now supports O_CLOEXEC and this simplifies Emacs.
* build-aux/config.guess, lib/fcntl.in.h, lib/stdio.in.h:
* lib/stdlib.in.h, m4/extensions.m4, m4/stdlib_h.m4:
Copy from Gnulib.
* lib/cloexec.c, lib/cloexec.h, lib/open.c:
* m4/mode_t.m4, m4/open-cloexec.m4, m4/open.m4:
New files, copied from Gnulib.
* lib/gnulib.mk.in, m4/gnulib-comp.m4: Regenerate.
* lib-src/etags.c (O_CLOEXEC) [WINDOWSNT]:
Remove, as Gnulib does this for us.
* src/filelock.c (create_lock_file):
* src/sysdep.c (emacs_open, emacs_pipe):
Don’t worry about O_CLOEXEC == 0, as Gnulib no longer sets it to 0.
2017-08-16 20:55:46 +00:00
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# mode_t.m4 serial 2
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2020-01-01 00:19:43 +00:00
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dnl Copyright (C) 2009-2020 Free Software Foundation, Inc.
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Merge from Gnulib; use ‘open’ for O_CLOEXEC
This incorporates:
2017-08-15 renameat: ensure declaration in <stdio.h> on NetBSD
2017-08-15 extensions: enable NetBSD specific extensions
2017-08-14 open: support O_CLOEXEC
2017-08-13 reallocarray: new module
* admin/merge-gnulib (AVOIDED_MODULES): Remove ‘open’, since
it now supports O_CLOEXEC and this simplifies Emacs.
* build-aux/config.guess, lib/fcntl.in.h, lib/stdio.in.h:
* lib/stdlib.in.h, m4/extensions.m4, m4/stdlib_h.m4:
Copy from Gnulib.
* lib/cloexec.c, lib/cloexec.h, lib/open.c:
* m4/mode_t.m4, m4/open-cloexec.m4, m4/open.m4:
New files, copied from Gnulib.
* lib/gnulib.mk.in, m4/gnulib-comp.m4: Regenerate.
* lib-src/etags.c (O_CLOEXEC) [WINDOWSNT]:
Remove, as Gnulib does this for us.
* src/filelock.c (create_lock_file):
* src/sysdep.c (emacs_open, emacs_pipe):
Don’t worry about O_CLOEXEC == 0, as Gnulib no longer sets it to 0.
2017-08-16 20:55:46 +00:00
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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# For using mode_t, it's sufficient to use AC_TYPE_MODE_T and
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# include <sys/types.h>.
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# Define PROMOTED_MODE_T to the type that is the result of "default argument
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# promotion" (ISO C 6.5.2.2.(6)) of the type mode_t.
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AC_DEFUN([gl_PROMOTED_TYPE_MODE_T],
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[
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AC_REQUIRE([AC_TYPE_MODE_T])
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AC_CACHE_CHECK([for promoted mode_t type], [gl_cv_promoted_mode_t], [
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dnl Assume mode_t promotes to 'int' if and only if it is smaller than 'int',
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dnl and to itself otherwise. This assumption is not guaranteed by the ISO C
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dnl standard, but we don't know of any real-world counterexamples.
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>]],
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[[typedef int array[2 * (sizeof (mode_t) < sizeof (int)) - 1];]])],
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[gl_cv_promoted_mode_t='int'],
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[gl_cv_promoted_mode_t='mode_t'])
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])
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AC_DEFINE_UNQUOTED([PROMOTED_MODE_T], [$gl_cv_promoted_mode_t],
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[Define to the type that is the result of default argument promotions of type mode_t.])
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])
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