AUtomatic dependency generation. Runs on Linux (at least). Probably should

update .cvsignore (somehere) to exclude .d files

Originally committed as revision 1459 to svn://svn.ffmpeg.org/ffmpeg/trunk

Makefile

@@ -54,9 +54,12 @@ endif
 
 OBJS = ffmpeg.o ffserver.o
 SRCS = $(OBJS:.o=.c) $(ASM_OBJS:.o=.s)
+DEPS = $(OBJS:.o=.d)
 
 all: lib $(PROG) $(VHOOK)
 
+-include $(DEPS)
+
 lib:
 	$(MAKE) -C libavcodec all
 	$(MAKE) -C libavformat all
@@ -80,6 +83,10 @@ ffplay: ffmpeg$(EXE)
 %.o: %.c
 	$(CC) $(CFLAGS) -c -o $@ $< 
 
+%.d: %.c
+	@echo $@ \\ > $@
+	$(CC) $(CFLAGS) -MM $< >> $@
+
 videohook:
 	$(MAKE) -C vhook all
 
@@ -108,7 +115,7 @@ clean: $(CLEANVHOOK)
 	$(MAKE) -C libavcodec clean
 	$(MAKE) -C libavformat clean
 	$(MAKE) -C tests clean
-	rm -f *.o *~ .depend gmon.out TAGS ffmpeg_g$(EXE) $(PROG) 
+	rm -f *.o *.d *~ .depend gmon.out TAGS ffmpeg_g$(EXE) $(PROG) 
 
 clean-vhook:
 	$(MAKE) -C vhook clean

libavcodec/Makefile

@@ -89,6 +89,7 @@ OBJS += ppc/dsputil_altivec.o ppc/mpegvideo_altivec.o ppc/idct_altivec.o \
 endif
 
 SRCS := $(OBJS:.o=.c) $(ASM_OBJS:.o=.S)
+DEPS := $(OBJS:.o=.d) 
 OBJS := $(OBJS) $(ASM_OBJS)
 
 LIB= $(LIBPREF)avcodec$(LIBSUF)
@@ -116,6 +117,12 @@ dsputil.o: dsputil.c dsputil.h
 %.o: %.c
 	$(CC) $(CFLAGS) -c -o $@ $< 
 
+%.d: %.c
+	@echo $@ \\ > $@
+	$(CC) $(CFLAGS) -MM $< >> $@
+
+-include $(DEPS)        
+
 %.o: %.S
 	$(CC) $(CFLAGS) -c -o $@ $<
 
@@ -137,7 +144,7 @@ depend:
 	$(CC) -MM $(CFLAGS) $(SRCS) 1>.depend
 
 clean: 
-	rm -f *.o *~ .depend $(LIB) $(SLIB) *.so i386/*.o i386/*~ \
+	rm -f *.o *.d *~ .depend $(LIB) $(SLIB) *.so i386/*.o i386/*~ \
 	   armv4l/*.o armv4l/*~ \
 	   mlib/*.o mlib/*~ \
 	   alpha/*.o alpha/*~ \

libavformat/Makefile

@@ -50,6 +50,8 @@ endif
 
 LIB= $(LIBPREF)avformat$(LIBSUF)
 
+DEPS= $(OBJS:.o=.d)
+
 all: $(LIB)
 
 $(LIB): $(OBJS)
@@ -70,9 +72,15 @@ installlib: all
 %.o: %.c
 	$(CC) $(CFLAGS) -c -o $@ $< 
 
+%.d: %.c
+	@echo $@ \\ > $@
+	$(CC) $(CFLAGS) -MM $< >> $@
+
+-include $(DEPS)        
+
 # BeOS: remove -Wall to get rid of all the "multibyte constant" warnings
 %.o: %.cpp
 	g++ $(subst -Wall,,$(CFLAGS)) -c -o $@ $< 
 
 clean: 
-	rm -f *.o *~ *.a $(LIB)
+	rm -f *.o *.d *~ *.a $(LIB)

vhook/Makefile

@@ -15,18 +15,25 @@ endif
 
 all: $(HOOKS) 
 
+DEPS= $(HOOKS:.so=.d)
+
 install:
 	install -s -m 755 $(HOOKS) $(INSTDIR)
 
 imlib2.so: imlib2.o
 	$(CC) -g -o $@ $(SHFLAGS) $< -lImlib2
-	rm $<
 
 %.so: %.o
 	$(CC) -g -o $@ $(SHFLAGS) $<
 
+%.d: %.c
+	@echo $@ \\ > $@
+	$(CC) $(CFLAGS) -MM $< >> $@
+
+-include $(DEPS)        
+
 %.html: %.texi
 	texi2html -monolithic -number $<
 
 clean:
-	rm -f *.o *.so *~
+	rm -f *.o *.d *.so *~