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authorThomas White <taw@bitwiz.org.uk>2010-12-07 19:58:08 -0700
committerThomas White <taw@physics.org>2012-02-22 15:27:08 +0100
commit508de274d96794a194694cf75b9711d1b8882301 (patch)
treee64d398aa018c67786eac3e25d85892e92f53e41 /m4/strnlen.m4
parent37aa7fb6df90c0027e1589f7e15a84f527e5ffe0 (diff)
Add Gnulib m4 files
Diffstat (limited to 'm4/strnlen.m4')
-rw-r--r--m4/strnlen.m432
1 files changed, 32 insertions, 0 deletions
diff --git a/m4/strnlen.m4 b/m4/strnlen.m4
new file mode 100644
index 00000000..52bb838f
--- /dev/null
+++ b/m4/strnlen.m4
@@ -0,0 +1,32 @@
+# strnlen.m4 serial 12
+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.
+
+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
+ AC_FUNC_STRNLEN
+ dnl Note: AC_FUNC_STRNLEN does AC_LIBOBJ([strnlen]).
+ if test $ac_cv_func_strnlen_working = no; then
+ REPLACE_STRNLEN=1
+ fi
+ fi
+ if test $HAVE_DECL_STRNLEN = 0 || test $REPLACE_STRNLEN = 1; then
+ AC_LIBOBJ([strnlen])
+ gl_PREREQ_STRNLEN
+ fi
+])
+
+# Prerequisites of lib/strnlen.c.
+AC_DEFUN([gl_PREREQ_STRNLEN], [:])