From: Michael Brown <mcb30@etherboot.org>
Date: Mon, 24 Mar 2008 00:28:55 +0000 (+0000)
Subject: [Makefile] Use -MM instead of -M in dependency generation
X-Git-Tag: v0.9.4~193
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c06e6d063582a96982449b0238b0081ae8da0114;p=thirdparty%2Fipxe.git

[Makefile] Use -MM instead of -M in dependency generation

Using -MM strips out any system header files from the dependency list,
which means that we could safely use an external stdarg.h if we wanted
to.
---

diff --git a/src/Makefile.housekeeping b/src/Makefile.housekeeping
index ba306ca50..fe3addc94 100644
--- a/src/Makefile.housekeeping
+++ b/src/Makefile.housekeeping
@@ -179,7 +179,7 @@ endef
 define obj_template
 
 	@$(CPP) $(CFLAGS) $(CFLAGS_$(3)) $(CFLAGS_$(4)) -DOBJECT=$(4) \
-		-Wno-error -M $(1) -MT "$(4)_DEPS" -MG -MP | \
+		-Wno-error -MM $(1) -MT "$(4)_DEPS" -MG -MP | \
 		sed 's/_DEPS\s*:/_DEPS =/' >> $(2)
 	@$(ECHO_E) '\n$$(BIN)/$(4).o : $(1) $$(MAKEDEPS) $$($(4)_DEPS)' \
 		 '\n\t$$(QM)$(ECHO) "  [BUILD] $$@"\n' \