diff --git a/TopMakefile b/TopMakefile
index 4405879..cd2d505 100644
--- a/TopMakefile
+++ b/TopMakefile
@@ -102,7 +102,7 @@ GET_MLI=$(foreach interf,$(patsubst %.mli,%,$(filter %.mli,$(patsubst %.cmi,%.ml
 %.cmxa %.a %.so:
 	$(if $(STUBSOBJS),                            \
 	 $(OCAMLMKLIB)  -o $* $^ $(OCAMLMKLIB_FLAGS), \
-	 $(OCAMLOPT) -a -o $*.cmxa $^                 \
+	 $(OCAMLOPT) -g -a -o $*.cmxa $^                 \
 	)
 
 %.cma %.a %.so:
@@ -161,7 +161,7 @@ install-prog-byte: install-buildprog-byte
 OLIBS = $(addsuffix .cmxa,$(LIBS))
 
 install-buildprog-opt: $(CMX)
-	$(OCAMLOPT) -o $(NAME) $(INCLUDES) -package "$(REQUIRES)" -linkpkg \
+	$(OCAMLOPT) -g -o $(NAME) $(INCLUDES) -package "$(REQUIRES)" -linkpkg \
 	-predicates "$(PREDICATES)" $(OLIBS) $(CMX)
 	$(INSTALL) -d $(BUILDBIN) 
 	$(INSTALL_SCRIPT) -t $(BUILDBIN) $(NAME) 
@@ -300,10 +300,10 @@ uninstall-doc-man: clean-doc-man
 	$(OCAMLC) $(INCLUDES) $(CLI_OCAMLFIND) -c $<
 
 .ml.o:
-	$(OCAMLOPT) $(INCLUDES) $(CLI_OCAMLFIND) -c $<
+	$(OCAMLOPT) -g $(INCLUDES) $(CLI_OCAMLFIND) -c $<
 	
 .ml.cmx:
-	$(OCAMLOPT) $(INCLUDES) $(CLI_OCAMLFIND) -c $<
+	$(OCAMLOPT) -g $(INCLUDES) $(CLI_OCAMLFIND) -c $<
 	
 .mll.ml:
 	$(OCAMLLEX) $<