From 466ce08d3c5946b1215be52a26dfc51d38c740a2 Mon Sep 17 00:00:00 2001
From: Patrik Gornicz <Gornicz.P@gmail.com>
Date: Wed, 16 Jul 2008 23:49:50 -0400
Subject: [PATCH] switched to a better depend system

---
 src/.gitignore |  1 +
 src/Makefile   | 17 ++++++++++++-----
 2 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/src/.gitignore b/src/.gitignore
index 5761abc..6142305 100644
--- a/src/.gitignore
+++ b/src/.gitignore
@@ -1 +1,2 @@
 *.o
+*.d
diff --git a/src/Makefile b/src/Makefile
index 915e4ed..77339f0 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -40,7 +40,7 @@ OBJS := ${SRCS:.cpp=.o}
 
 
 TARGET := ../run_physics
-DEPEND := depend.mk
+DEPENDS := ${SRCS:.cpp=.d}
 
 
 .PHONY: all
@@ -48,10 +48,18 @@ all: ${TARGET}
 
 ${TARGET}: ${OBJS}
 	${CXX} ${CXXFLAGS} -o ${TARGET} $^ ${LIBS}
+	@echo ""
 
 .PHONY: depend
 depend: ${SRCS}
-	${CXX} -MM $^ > ${DEPEND}
+	${CXX} -MM $^ > ${DEPENDS}
+
+# how to make a depend file from a source file
+%.d: %.cpp
+	@echo "DEP: $@"
+	@${CXX} -M ${CXXFLAGS} $< | sed 's,: , $@: ,' > $@
+
+#@${CXX} -M ${CXXFLAGS} $< | sed 's,\($*\)\.o[ :]*,\1.o $@ : ,g' > $@
 
 
 .PHONY: clean
@@ -60,8 +68,7 @@ clean:
 
 .PHONY: distclean
 distclean: clean
-	rm -f tags depend.mk
-	touch depend.mk
+	rm -f tags ${DEPENDS}
 
 tags: ${SRCS}
 	ctags $^
@@ -84,4 +91,4 @@ prof: all
 	gprof -b ${TARGET} > prof
 	kprof -f prof
 
-include ${DEPEND}
+-include ${DEPENDS}
-- 
2.10.2