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-rw-r--r--m4/rpmatch.m431
1 files changed, 31 insertions, 0 deletions
diff --git a/m4/rpmatch.m4 b/m4/rpmatch.m4
new file mode 100644
index 0000000..4a8bdf7
--- /dev/null
+++ b/m4/rpmatch.m4
@@ -0,0 +1,31 @@
+# rpmatch.m4 serial 10
+dnl Copyright (C) 2002-2003, 2007-2023 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_RPMATCH],
+[
+ dnl Persuade glibc <stdlib.h> to declare rpmatch().
+ AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
+
+ AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
+ AC_CHECK_FUNCS([rpmatch])
+ if test $ac_cv_func_rpmatch = no; then
+ HAVE_RPMATCH=0
+ fi
+])
+
+# Prerequisites of lib/rpmatch.c.
+AC_DEFUN([gl_PREREQ_RPMATCH], [
+ AC_CACHE_CHECK([for nl_langinfo and YESEXPR], [gl_cv_langinfo_yesexpr],
+ [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
+ [[char* cs = nl_langinfo(YESEXPR); return !cs;]])],
+ [gl_cv_langinfo_yesexpr=yes],
+ [gl_cv_langinfo_yesexpr=no])
+ ])
+ if test $gl_cv_langinfo_yesexpr = yes; then
+ AC_DEFINE([HAVE_LANGINFO_YESEXPR], [1],
+ [Define if you have <langinfo.h> and nl_langinfo(YESEXPR).])
+ fi
+])