Improved dependency handling.

1 files changed, 33 insertions, 11 deletions

diff --git a/Makefile b/Makefile
index 6deddf0..67c8ab3 100644
--- a/Makefile
+++ b/Makefile
@@ -1,12 +1,28 @@
 CFLAGS = -O0 -g3 -Wall
+SRC    = main.c datastructs.c indices.c
+CC     = gcc
+
 
 all: atomdis
 
-atomdis: main.o datastructs.o indices.o
+atomdis: $(SRC:.c=.o)
 	$(CC) -o atomdis $^
 
+
+# Autogenerated files
+
+atombios.h:
+	test -r ../ATI/atombios.h
+	ln -s ../ATI/atombios.h .
+
+datastructs_gen.c: atombios.h datastructs_factory.pl
+	cpp atombios.h | perl ./datastructs_factory.pl > datastructs_gen.c
+
+
+# Clean
+
 clean: _always_
-	-rm -f *.o
+	-rm -f *.o *.d
 	-rm -f atombios.h datastructs_gen.c
 
 distclean: clean
@@ -14,19 +30,25 @@ distclean: clean
 	-rm -f atomdis
 
 
-atombios.h:
-	test -r ../ATI/atombios.h
-	ln -s ../ATI/atombios.h .
+# Depend
 
-datastructs_gen.c: atombios.h datastructs_factory.pl
-	cpp atombios.h | perl ./datastructs_factory.pl > datastructs_gen.c
+depend: _always_
+	-rm -f *.d
+	make dependfiles
 
-_always_:
-	@true
+dependfiles: $(SRC:.c=.d)
 
+$(SRC:.c=.d): datastructs_gen.c
+	gcc -MM -MF $@ $(@:.d=.c)
+
+-include $(SRC:.c=.d)
+
+
+# Special Flags + Dependencies
 
-main.o: atombios.h
 datastructs.o: CFLAGS += -Wno-unused
-datastructs.o: atombios.h datastructs_gen.c
+
+_always_:
+	@true
 
 #EOF