Index: src/Makefile.in
--- src/Makefile.in.orig
+++ src/Makefile.in
@@ -1153,7 +1153,6 @@ libmodsecurity_la_CPPFLAGS = \
 	-g \
 	-I../others \
 	-fPIC \
-	-O3 \
 	-I../headers \
 	$(GEOIP_CFLAGS) \
 	$(GLOBAL_CPPFLAGS) \