* don't rebuild ffmpeg when libs were not modified

Originally committed as revision 1681 to svn://svn.ffmpeg.org/ffmpeg/trunk
22 years ago · 127d5c8d43
parent d1db862378
commit 127d5c8d43
1 changed files with 2 additions and 1 deletions
--- a/3
+++ b/3
@ -111,7 +111,8 @@ endif
 	$(CC) -MM $(CFLAGS) $^ 1>.depend

 .libs: lib
-	touch .libs
+	@test -f .libs || touch .libs
+	@for i in $(DEP_LIBS) ; do if test $$i -nt .libs ; then touch .libs; fi ; done

 clean: $(CLEANVHOOK)
 	$(MAKE) -C libavcodec clean