80d50c5665
* tools/snippet/_Noreturn.h, tools/snippet/c++defs.h, tools/snippet/arg-nonnull.h, tools/snippet/warn-on-use.h: Rename to... * lib/_Noreturn.h, lib/c++defs.h, lib/arg-nonnull.h, lib/warn-on-use.h: ... these. * lib/filename.h, lib/getopt-cdefs.in.h, lib/getopt-core.h, lib/getopt-ext.h, lib/getopt-pfx-core.h, lib/getopt-pfx-ext.h, lib/localtime-buffer.c, lib/localtime-buffer.h, lib/malloca.c, lib/malloca.h, lib/malloca.valgrind, lib/stat-w32.c, lib/stat-w32.h, m4/eealloc.m4, m4/localtime-buffer.m4, m4/malloca.m4: New files. * lib/argp-help.c, lib/argp-parse.c, lib/error.c, lib/float.in.h, lib/getopt1.c, lib/getopt.c, lib/getopt.in.h, lib/getopt_int.h, lib/gettext.h, lib/gettimeofday.c, lib/intprops.h, lib/isatty.c, lib/limits.in.h, lib/localcharset.c, lib/Makefile.am, lib/mbrtowc.c, lib/mbsinit.c, lib/msvc-nothrow.c, lib/quotearg.c, lib/stat.c, lib/stdalign.in.h, lib/stdint.in.h, lib/string.in.h, lib/sys_stat.in.h, lib/sys_types.in.h, lib/tempname.c, lib/time.in.h, lib/unistd.in.h, lib/vasnprintf.c, lib/wchar.in.h, lib/wctype.in.h, lib/xalloc.h, lib/xalloc-oversized.h, m4/fcntl-o.m4, m4/float_h.m4, m4/getopt.m4, m4/gettimeofday.m4, m4/gnulib-common.m4, m4/gnulib-comp.m4, m4/include_next.m4, m4/largefile.m4, m4/lstat.m4, m4/mbrtowc.m4, m4/memchr.m4, m4/mkstemp.m4, m4/printf.m4, m4/sleep.m4, m4/stat.m4, m4/stdalign.m4, m4/stdint.m4, m4/strerror.m4, m4/string_h.m4, m4/sys_stat_h.m4, m4/sys_time_h.m4, m4/sys_types_h.m4, m4/time_h.m4, m4/unistd_h.m4, m4/wchar_h.m4, m4/wctype_h.m4, m4/wint_t.m4: Update.
74 lines
2.3 KiB
Text
74 lines
2.3 KiB
Text
# wint_t.m4 serial 7
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dnl Copyright (C) 2003, 2007-2017 Free Software Foundation, Inc.
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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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dnl From Bruno Haible.
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dnl Test whether <wchar.h> has the 'wint_t' type and whether gnulib's
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dnl <wchar.h> or <wctype.h> would, if present, override 'wint_t'.
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dnl Prerequisite: AC_PROG_CC
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AC_DEFUN([gt_TYPE_WINT_T],
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[
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AC_CACHE_CHECK([for wint_t], [gt_cv_c_wint_t],
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[AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM(
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[[
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/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
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<wchar.h>.
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BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be included
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before <wchar.h>. */
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#include <stddef.h>
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#include <stdio.h>
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#include <time.h>
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#include <wchar.h>
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wint_t foo = (wchar_t)'\0';]],
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[[]])],
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[gt_cv_c_wint_t=yes],
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[gt_cv_c_wint_t=no])])
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if test $gt_cv_c_wint_t = yes; then
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AC_DEFINE([HAVE_WINT_T], [1], [Define if you have the 'wint_t' type.])
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dnl Determine whether gnulib's <wchar.h> or <wctype.h> would, if present,
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dnl override 'wint_t'.
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AC_CACHE_CHECK([whether wint_t is too small],
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[gl_cv_type_wint_t_too_small],
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[AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM([[
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/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
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<wchar.h>.
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BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
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included before <wchar.h>. */
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#if !(defined __GLIBC__ && !defined __UCLIBC__)
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# include <stddef.h>
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# include <stdio.h>
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# include <time.h>
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#endif
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#include <wchar.h>
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int verify[sizeof (wint_t) < sizeof (int) ? -1 : 1];
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]])],
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[gl_cv_type_wint_t_too_small=no],
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[gl_cv_type_wint_t_too_small=yes])])
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if test $gl_cv_type_wint_t_too_small = yes; then
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GNULIB_OVERRIDES_WINT_T=1
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else
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GNULIB_OVERRIDES_WINT_T=0
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fi
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else
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GNULIB_OVERRIDES_WINT_T=0
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fi
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AC_SUBST([GNULIB_OVERRIDES_WINT_T])
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])
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dnl Prerequisites of the 'wint_t' override.
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AC_DEFUN([gl_TYPE_WINT_T_PREREQ],
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[
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AC_CHECK_HEADERS_ONCE([crtdefs.h])
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if test $ac_cv_header_crtdefs_h = yes; then
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HAVE_CRTDEFS_H=1
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else
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HAVE_CRTDEFS_H=0
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fi
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AC_SUBST([HAVE_CRTDEFS_H])
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])
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