* ext/digest/md5: Use OpenSSL's MD5 engine if available. It is

  much faster than what we have now (md5.[ch]).  Add a knob
  (--with-bundled-md5) to extconf.rb which makes it use the
  bundled one anyway.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@2893 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 12 insertions, 4 deletions

diff --git a/ext/digest/md5/extconf.rb b/ext/digest/md5/extconf.rb
index 93a14025d0..0db0404dbe 100644
--- a/ext/digest/md5/extconf.rb
+++ b/ext/digest/md5/extconf.rb
@@ -5,10 +5,18 @@ require "mkmf"
 
 $CFLAGS << " -DHAVE_CONFIG_H -I#{File.dirname(__FILE__)}/.."
 
-$objs = [
-  "md5.#{$OBJEXT}",
-  "md5init.#{$OBJEXT}",
-]
+$objs = [ "md5init.#{$OBJEXT}" ]
+
+dir_config("openssl")
+
+if !with_config("bundled-md5") &&
+    have_library("crypto") && have_header("openssl/md5.h")
+  $objs << "md5ossl.#{$OBJEXT}"
+
+  $libs << " -lcrypto"
+else
+  $objs << "md5.#{$OBJEXT}"
+end
 
 have_header("sys/cdefs.h")