From 72dc71335e1d616f7fad8c20134a433eb49e159b Mon Sep 17 00:00:00 2001
From: Max Horn
Date: Sat, 6 Jul 2002 13:02:57 +0000
Subject: added intelligent dependency tracking for anybody who uses GCC

svn-id: r4467
---
 Makefile.common | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

(limited to 'Makefile.common')

diff --git a/Makefile.common b/Makefile.common
index 6b7fca84eb..1079bfab0a 100644
--- a/Makefile.common
+++ b/Makefile.common
@@ -21,8 +21,24 @@ DISTFILES=$(OBJS:.o=.cpp) Makefile scumm.h scummsys.h stdafx.h stdafx.cpp \
 	debugrl.h whatsnew.txt readme.txt copying.txt \
 	scummvm.dsp scummvm.dsw sound/fmopl.h gui.h sound.h
 
+# Default (dumb) compile & dependcy rules
 .cpp.o:
 	$(CC) $(CFLAGS) $(CPPFLAGS) -c $(<) -o $*.o
+$(OBJS): $(INCS)
+
+
+# If you use GCC, disable the above and enable this for intelligent
+# dependency tracking. 
+#
+#DEPDIR := .deps
+#.cpp.o:
+#	mkdir -p $(DEPDIR)
+#	$(CC) -Wp,-MMD,"$(DEPDIR)/$(*F).d2" $(CFLAGS) $(CPPFLAGS) -c $(<) -o $*.o
+#	echo -n "$(*D)/" > $(DEPDIR)/$(*F).d
+#	cat "$(DEPDIR)/$(*F).d2" >> "$(DEPDIR)/$(*F).d"
+#	rm -f "$(DEPDIR)/$(*F).d2"
+#
+#-include $(DEPDIR)/*.d
 
 all: scummvm$(EXEEXT)
 
@@ -32,6 +48,4 @@ scummvm$(EXEEXT): $(OBJS)
 clean:
 	rm -f $(OBJS) scummvm$(EXEEXT)
 
-$(OBJS): $(INCS)
-
 .PHONY: all clean dist
-- 
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