| # wmempcpy.m4 serial 1 |
| dnl Copyright (C) 2020-2021 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_WMEMPCPY], |
| [ |
| AC_REQUIRE([gl_WCHAR_H_DEFAULTS]) |
| |
| dnl Persuade glibc <wchar.h> to declare wmempcpy(). |
| AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) |
| |
| dnl The wmempcpy() declaration in lib/wchar.in.h uses 'restrict'. |
| AC_REQUIRE([AC_C_RESTRICT]) |
| |
| AC_CHECK_FUNCS_ONCE([wmempcpy]) |
| if test $ac_cv_func_wmempcpy = no; then |
| HAVE_WMEMPCPY=0 |
| fi |
| ]) |
