diff --git a/Makefile b/Makefile
index 36c3898..02438ac 100644
--- a/Makefile
+++ b/Makefile
@@ -19,7 +19,7 @@ RESULT = cpdf
 ANNOTATE = true
 PACKS = camlpdf
 
-CFLAGS = -fPIC -g -o2
+CFLAGS = -fPIC -g
 OCAMLFLAGS = -bin-annot
 OCAMLNCFLAGS = -g -safe-string
 OCAMLBCFLAGS = -g -safe-string
@@ -41,7 +41,7 @@ all : $(TARGETS)
 clean ::
 	rm -rf doc foo foo2 out.pdf out2.pdf out3.pdf foo.pdf decomp.pdf *.cmt \
 	*.cmti *.json test/*.pdf *.ps *.aux *.idx *.log *.out *.toc *.cut \
-	*.ttf *.ttx out.png
+	*.ttf *.ttx out.png cpdf.dSYM
 
 DOC_FILES = $(foreach x,$(DOC),$(x).mli)
 
diff --git a/OCamlMakefile b/OCamlMakefile
index 3968988..8a683c1 100644
--- a/OCamlMakefile
+++ b/OCamlMakefile
@@ -614,7 +614,7 @@ endif
 
 ifneq ($(strip $(OBJ_LINK)),)
   ifdef CREATE_LIB
-    OBJS_LIBS := -cclib -l$(CLIB_BASE) $(CLIBS_OPTS) $(MAYBE_IDL)
+    OBJS_LIBS := -ccopt "$(CFLAGS)" -cclib -l$(CLIB_BASE) $(CLIBS_OPTS) $(MAYBE_IDL)
   else
     OBJS_LIBS := $(OBJ_LINK) $(CLIBS_OPTS) $(MAYBE_IDL)
   endif