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These files have been created by running ./build-aux/bootstrap with Gnulib as at commit 99ce3a004a2974c71f510f5df5bc6be7e2811d30 (with a date stamp of Tue Jan 2 09:19:44 2024 -0800), Autoconf 2.71, Automake 1.16.5, Gettext 0.21 and pkgconf 1.8.1.
58 lines
1.8 KiB
Plaintext
58 lines
1.8 KiB
Plaintext
# wint_t.m4 serial 11
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dnl Copyright (C) 2003, 2007-2024 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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[[#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 large enough],
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[gl_cv_type_wint_t_large_enough],
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[AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM(
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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_large_enough=yes],
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[gl_cv_type_wint_t_large_enough=no])])
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if test $gl_cv_type_wint_t_large_enough = no; then
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GNULIBHEADERS_OVERRIDE_WINT_T=1
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else
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GNULIBHEADERS_OVERRIDE_WINT_T=0
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fi
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else
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GNULIBHEADERS_OVERRIDE_WINT_T=0
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fi
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AC_SUBST([GNULIBHEADERS_OVERRIDE_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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