diff -r 27f852b7efd2 -r 561e962f5a6e rrdtool/rrdtool.spec
--- a/rrdtool/rrdtool.spec	Tue Aug 28 19:00:50 2012 +0200
+++ b/rrdtool/rrdtool.spec	Tue Aug 28 19:02:00 2012 +0200
@@ -136,7 +136,7 @@
         --enable-rrdcgi
 
     #   build package
-    %{l_make} %{l_mflags}
+    %{l_make} %{l_mflags -O}
 
     #   build Perl part
 %if "%{with_perl}" == "yes"