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# wcsdup.m4 serial 4
dnl Copyright (C) 2011-2021 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.
AC_DEFUN([gl_FUNC_WCSDUP],
[
AC_REQUIRE([gl_WCHAR_H_DEFAULTS])
AC_CACHE_CHECK([for wcsdup],
[gl_cv_func_wcsdup],
[AC_LINK_IFELSE(
[AC_LANG_PROGRAM(
[[#include <wchar.h>
]GL_MDA_DEFINES],
[[return wcsdup (L"hello") != NULL;]])
],
[gl_cv_func_wcsdup=yes],
[gl_cv_func_wcsdup=no])
])
if test $gl_cv_func_wcsdup = no; then
HAVE_WCSDUP=0
fi
])
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