Imported Upstream version 1.21

[tar] / m4 / rawmemchr.m4

diff --git a/m4/rawmemchr.m4 b/m4/rawmemchr.m4
new file mode 100644 (file)
index 0000000..1ac7b74
--- /dev/null
+++ b/m4/rawmemchr.m4
@@ -0,0 +1,21 @@
+# rawmemchr.m4 serial 1
+dnl Copyright (C) 2003, 2007, 2008 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_RAWMEMCHR],
+[
+  dnl Persuade glibc <string.h> to declare rawmemchr().
+  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
+
+  AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
+  AC_REPLACE_FUNCS([rawmemchr])
+  if test $ac_cv_func_rawmemchr = no; then
+    HAVE_RAWMEMCHR=0
+    gl_PREREQ_RAWMEMCHR
+  fi
+])
+
+# Prerequisites of lib/strchrnul.c.
+AC_DEFUN([gl_PREREQ_RAWMEMCHR], [:])