md5, sha1, sha256, sha512: use openssl routines if available

[gnulib.git] / m4 / md5.m4

diff --git a/m4/md5.m4 b/m4/md5.m4
index 5d08998..541a26b 100644 (file)
--- a/m4/md5.m4
+++ b/m4/md5.m4
@@ -1,18 +1,14 @@
-# md5.m4 serial 2
-dnl Copyright (C) 2002-2003 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.
+# md5.m4 serial 14
+dnl Copyright (C) 2002-2006, 2008-2013 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_MD5],
 [
-  dnl Prerequisites of lib/md5.h.
-  AC_REQUIRE([AC_C_INLINE])
-  AC_CHECK_HEADERS_ONCE(limits.h)
-
   dnl Prerequisites of lib/md5.c.
-  AC_REQUIRE([AC_HEADER_STDC])
-  AC_CHECK_FUNCS_ONCE(memcpy)
+  AC_REQUIRE([gl_BIGENDIAN])
+
+  dnl Determine HAVE_OPENSSL_MD5 and LIB_CRYPTO
+  gl_CRYPTO_CHECK([MD5])
 ])