$NetBSD$

--- otherlibs/Makefile.orig	2007-11-08 10:17:47.000000000 +0100
+++ otherlibs/Makefile
@@ -17,7 +17,7 @@
 
 CAMLC=$(ROOTDIR)/ocamlcomp.sh
 CAMLOPT=$(ROOTDIR)/ocamlcompopt.sh
-CFLAGS=-I$(ROOTDIR)/byterun -O $(SHAREDCCCOMPOPTS) $(EXTRACFLAGS)
+CFLAGS+=-I$(ROOTDIR)/byterun $(SHAREDCCCOMPOPTS) $(EXTRACFLAGS)
 
 include ../Makefile.shared
 # Note .. is the current directory (this makefile is included from