From c3abb521767553017dfa8052b1960434bc0e773f Mon Sep 17 00:00:00 2001
From: Jorj Bauer <jorj@jorj.org>
Date: Fri, 10 Jul 2020 10:27:10 -0400
Subject: [PATCH] better (simpler, more modern) dependency handling

---
 Makefile | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/Makefile b/Makefile
index bf65608..4b80375 100755
--- a/Makefile
+++ b/Makefile
@@ -51,13 +51,10 @@ clean:
 	rm -f *.o *~ */*.o */*~ testharness.basic testharness.verbose testharness.extended testharness apple/diskii-rom.h apple/applemmu-rom.h apple/parallel-rom.h aiie-sdl *.d */*.d
 
 # Automatic dependency handling
--include $(OBJS:.o=.d)
-%.o: %.cpp
-	g++ -c $(CXXFLAGS) $^ -o $*.o
-	g++ -MM $(CXXFLAGS) $^ > $*.d
-	@mv -f $*.d $*.d.tmp
-	@sed -e 's|.*:|$*.o:|' < $*.d.tmp > $*.d
-	@sed -e 's/.*://' -e 's/\\$$//' < $*.d.tmp | fmt -1 | \
-	  sed -e 's/^ *//' -e 's/$$/:/' >> $*.d
-	@rm -f $*.d.tmp
+-include *.d
+-include apple/*.d
+-include nix/*.d
+-include sdl/*.d
 
+%.o: %.cpp
+	g++ $(CXXFLAGS) -MMD -MP -c $< -o $@