NEWS.stable: log cherry-pick [e446f25]->[c092018] relocatable-shell: Update suggested...

[gnulib.git] / m4 / strsep.m4

diff --git a/m4/strsep.m4 b/m4/strsep.m4
index 430a258..5821af6 100644 (file)
--- a/m4/strsep.m4
+++ b/m4/strsep.m4
@@ -1,16 +1,22 @@
-# strsep.m4 serial 1
-dnl Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
-dnl This file is free software, distributed under the terms of the GNU
-dnl General Public License.  As a special exception to the GNU General
-dnl Public License, this file may be distributed as part of a program
-dnl that contains a configuration script generated by Autoconf, under
-dnl the same distribution terms as the rest of that program.
+# strsep.m4 serial 10
+dnl Copyright (C) 2002-2004, 2007, 2009-2014 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_STRSEP],
 [
-  AC_REPLACE_FUNCS(strsep)
-  AC_CHECK_DECLS_ONCE(strsep)
-  gl_PREREQ_STRSEP
+  dnl Persuade glibc <string.h> to declare strsep().
+  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
+
+  dnl The strsep() declaration in lib/string.in.h uses 'restrict'.
+  AC_REQUIRE([AC_C_RESTRICT])
+
+  AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
+  AC_CHECK_FUNCS([strsep])
+  if test $ac_cv_func_strsep = no; then
+    HAVE_STRSEP=0
+  fi
 ])
 
 # Prerequisites of lib/strsep.c.