diff -wurN astrometry.net-0.52/util/makefile.common astrometry.net-0.52.optimize/util/makefile.common
--- astrometry.net-0.52/util/makefile.common	2015-03-06 21:26:45.000000000 +0100
+++ astrometry.net-0.52.optimize/util/makefile.common	2015-03-10 22:41:54.598828875 +0100
@@ -250,8 +250,6 @@
 
 ifeq ($(OPTIMIZE),yes)
   # speedy!
-  FLAGS_DEF += -O3
-  FLAGS_DEF += -fomit-frame-pointer
   # turn off asserts:
   FLAGS_DEF += $(ASSERT)