aboutsummaryrefslogtreecommitdiff
path: root/m4/strnlen.m4
diff options
context:
space:
mode:
authorThomas White <taw@bitwiz.org.uk>2012-11-24 20:34:57 +0100
committerThomas White <taw@bitwiz.org.uk>2012-11-24 20:34:57 +0100
commitc4f8271ad74d792ace569ad239a995cfe137dcf9 (patch)
tree972be065601a244b2b6870a786b9bc75bfed67bc /m4/strnlen.m4
parente3647d2ba17997e891a8cb7ab5b2804ed2026e49 (diff)
Add gnulib m4 files
Diffstat (limited to 'm4/strnlen.m4')
-rw-r--r--m4/strnlen.m430
1 files changed, 30 insertions, 0 deletions
diff --git a/m4/strnlen.m4 b/m4/strnlen.m4
new file mode 100644
index 0000000..d97e307
--- /dev/null
+++ b/m4/strnlen.m4
@@ -0,0 +1,30 @@
+# strnlen.m4 serial 13
+dnl Copyright (C) 2002-2003, 2005-2007, 2009-2012 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.
+
+AC_DEFUN([gl_FUNC_STRNLEN],
+[
+ AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
+
+ dnl Persuade glibc <string.h> to declare strnlen().
+ AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
+
+ AC_CHECK_DECLS_ONCE([strnlen])
+ if test $ac_cv_have_decl_strnlen = no; then
+ HAVE_DECL_STRNLEN=0
+ else
+ m4_pushdef([AC_LIBOBJ], [:])
+ dnl Note: AC_FUNC_STRNLEN does AC_LIBOBJ([strnlen]).
+ AC_FUNC_STRNLEN
+ m4_popdef([AC_LIBOBJ])
+ if test $ac_cv_func_strnlen_working = no; then
+ REPLACE_STRNLEN=1
+ fi
+ fi
+])
+
+# Prerequisites of lib/strnlen.c.
+AC_DEFUN([gl_PREREQ_STRNLEN], [:])