From accbb884e76216fbb244800d21d4eecadc24dbd1 Mon Sep 17 00:00:00 2001
From: Mike Frysinger <vapier@gentoo.org>
Date: Tue, 17 Apr 2007 11:38:21 +0000
Subject: add a basic .depend target to better catch updates in source files

---
 extra/config/Makefile | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'extra/config')

diff --git a/extra/config/Makefile b/extra/config/Makefile
index b377d43ef..6bd5bf65d 100644
--- a/extra/config/Makefile
+++ b/extra/config/Makefile
@@ -7,6 +7,10 @@ include $(top_builddir)Rules.mak
 
 include Makefile.kconfig
 
+-include .depend
+.depend: $(wildcard *.h *.c)
+	$(HOSTCC) $(HOST_EXTRACFLAGS) $(HOSTCFLAGS) -MM *.c > .depend 2>/dev/null || :
+
 __hostprogs := $(sort $(hostprogs-y) $(hostprogs-m))
 host-csingle    := $(foreach m,$(__hostprogs),$(if $($(m)-objs),,$(m)))
 host-cmulti := $(foreach m,$(__hostprogs),\
-- 
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