diff --git a/tools/Makefile b/tools/Makefile
index c7da95d99..7ab2f11f7 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -14,18 +14,3 @@
 #**************************************************************************
 
 include Makefile.shared
-
-# To make custom toplevels
-
-OCAMLMKTOP=ocamlmktop.cmo
-OCAMLMKTOP_IMPORTS=misc.cmo identifiable.cmo numbers.cmo config.cmo \
-	           arg_helper.cmo clflags.cmo ccomp.cmo
-
-ocamlmktop: $(OCAMLMKTOP)
-	$(CAMLC) $(LINKFLAGS) -o ocamlmktop $(OCAMLMKTOP_IMPORTS) $(OCAMLMKTOP)
-
-install::
-	cp ocamlmktop "$(INSTALL_BINDIR)/ocamlmktop$(EXE)"
-
-clean::
-	rm -f ocamlmktop
diff --git a/tools/Makefile.nt b/tools/Makefile.nt
index 3a16f967f..7ab2f11f7 100644
--- a/tools/Makefile.nt
+++ b/tools/Makefile.nt
@@ -14,22 +14,3 @@
 #**************************************************************************
 
 include Makefile.shared
-
-ifneq "$(wildcard ../flexdll/Makefile)" ""
-  CAMLOPT:=OCAML_FLEXLINK="../boot/ocamlrun ../flexdll/flexlink.exe" $(CAMLOPT)
-endif
-
-# To make custom toplevels
-
-OCAMLMKTOP=ocamlmktop.cmo
-OCAMLMKTOP_IMPORTS=misc.cmo identifiable.cmo numbers.cmo config.cmo \
-	           arg_helper.cmo clflags.cmo ccomp.cmo
-
-ocamlmktop: $(OCAMLMKTOP)
-	$(CAMLC) $(LINKFLAGS) -o ocamlmktop $(OCAMLMKTOP_IMPORTS) $(OCAMLMKTOP)
-
-install::
-	cp ocamlmktop "$(INSTALL_BINDIR)/ocamlmktop$(EXE)"
-
-clean::
-	rm -f ocamlmktop objinfo_helper$(EXE).manifest
diff --git a/tools/Makefile.shared b/tools/Makefile.shared
index 2d0611841..90096cb33 100644
--- a/tools/Makefile.shared
+++ b/tools/Makefile.shared
@@ -134,6 +134,21 @@ beforedepend:: ocamlmklibconfig.ml
 clean::
 	rm -f ocamlmklibconfig.ml
 
+# To make custom toplevels
+
+OCAMLMKTOP=ocamlmktop.cmo
+OCAMLMKTOP_IMPORTS=misc.cmo identifiable.cmo numbers.cmo config.cmo \
+             arg_helper.cmo clflags.cmo ccomp.cmo
+
+ocamlmktop: $(OCAMLMKTOP)
+	$(CAMLC) $(LINKFLAGS) -o ocamlmktop $(OCAMLMKTOP_IMPORTS) $(OCAMLMKTOP)
+
+install::
+	cp ocamlmktop "$(INSTALL_BINDIR)/ocamlmktop$(EXE)"
+
+clean::
+	rm -f ocamlmktop
+
 # Converter olabl/ocaml 2.99 to ocaml 3
 
 OCAML299TO3= lexer299.cmo ocaml299to3.cmo