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Diffstat (limited to '')
| -rw-r--r-- | m4/wmempcpy.m4 | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/m4/wmempcpy.m4 b/m4/wmempcpy.m4 new file mode 100644 index 0000000..abf1df3 --- /dev/null +++ b/m4/wmempcpy.m4 @@ -0,0 +1,24 @@ +# wmempcpy.m4 serial 3 +dnl Copyright (C) 2020-2023 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]) + + gl_CHECK_FUNCS_ANDROID([wmempcpy], [[#include <wchar.h>]]) + if test $ac_cv_func_wmempcpy = no; then + HAVE_WMEMPCPY=0 + case "$gl_cv_onwards_func_wmempcpy" in + future*) REPLACE_WMEMPCPY=1 ;; + esac + fi +]) |