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trader/m4/wint_t.m4
John Zaitseff c0ca9b04da Update all auto-generated files
These files have been created by running ./build-aux/bootstrap with
Gnulib as at commit b1268f22f443e8e4b9e85ddf4e024875a2cd2030 (with a date
stamp of Sun Jan 10 23:06:39 2021 +0100), Autoconf 2.69, Automake 1.16.3,
Gettext 0.21 and pkg-config 0.29.2.
2021-01-12 13:05:31 +11:00

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# wint_t.m4 serial 10
dnl Copyright (C) 2003, 2007-2021 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
dnl From Bruno Haible.
dnl Test whether <wchar.h> has the 'wint_t' type and whether gnulib's
dnl <wchar.h> or <wctype.h> would, if present, override 'wint_t'.
dnl Prerequisite: AC_PROG_CC
AC_DEFUN([gt_TYPE_WINT_T],
[
AC_CACHE_CHECK([for wint_t], [gt_cv_c_wint_t],
[AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[[#include <wchar.h>
wint_t foo = (wchar_t)'\0';]],
[[]])],
[gt_cv_c_wint_t=yes],
[gt_cv_c_wint_t=no])])
if test $gt_cv_c_wint_t = yes; then
AC_DEFINE([HAVE_WINT_T], [1], [Define if you have the 'wint_t' type.])
dnl Determine whether gnulib's <wchar.h> or <wctype.h> would, if present,
dnl override 'wint_t'.
AC_CACHE_CHECK([whether wint_t is large enough],
[gl_cv_type_wint_t_large_enough],
[AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[[#include <wchar.h>
int verify[sizeof (wint_t) < sizeof (int) ? -1 : 1];
]])],
[gl_cv_type_wint_t_large_enough=yes],
[gl_cv_type_wint_t_large_enough=no])])
if test $gl_cv_type_wint_t_large_enough = no; then
GNULIB_OVERRIDES_WINT_T=1
else
GNULIB_OVERRIDES_WINT_T=0
fi
else
GNULIB_OVERRIDES_WINT_T=0
fi
AC_SUBST([GNULIB_OVERRIDES_WINT_T])
])
dnl Prerequisites of the 'wint_t' override.
AC_DEFUN([gl_TYPE_WINT_T_PREREQ],
[
AC_CHECK_HEADERS_ONCE([crtdefs.h])
if test $ac_cv_header_crtdefs_h = yes; then
HAVE_CRTDEFS_H=1
else
HAVE_CRTDEFS_H=0
fi
AC_SUBST([HAVE_CRTDEFS_H])
])