-# strnlen.m4 serial 6
-dnl Copyright (C) 2002-2003, 2005, 2006 Free Software Foundation, Inc.
+# strnlen.m4 serial 10
+dnl Copyright (C) 2002-2003, 2005-2007, 2009-2010 Free Software Foundation,
+dnl 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.
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_STRNLEN],
[
dnl Persuade glibc <string.h> to declare strnlen().
AC_DEFUN([gl_FUNC_STRNLEN],
[
dnl Persuade glibc <string.h> to declare strnlen().
- AC_REQUIRE([AC_GNU_SOURCE])
+ AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
+
+ AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
+ AC_CHECK_DECLS_ONCE([strnlen])
+ if test $ac_cv_have_decl_strnlen = no; then
+ HAVE_DECL_STRNLEN=0
+ fi
[Define to rpl_strnlen if the replacement function should be used.])
gl_PREREQ_STRNLEN
fi
])
# Prerequisites of lib/strnlen.c.
[Define to rpl_strnlen if the replacement function should be used.])
gl_PREREQ_STRNLEN
fi
])
# Prerequisites of lib/strnlen.c.