quiet_cmd_gen = GEN $(patsubst $(INSTALL_HDR_PATH)/%,%,$@)
cmd_gen = \
-FNAME=$(patsubst $(INSTALL_HDR_PATH)/$(_dst)/%,%,$@) \
+FNAME=$(patsubst $(INSTALL_HDR_PATH)/$(_dst)/%,%,$@); \
STUBDEF=__ASM_STUB_`echo $$FNAME | tr a-z.- A-Z__`; \
(echo "/* File autogenerated by 'make headers_install' */" ; \
echo "\#ifndef $$STUBDEF" ; \