version.h should depend on config.mak.

The extra version string that is passed to configure is recorded in config.mak
and changes to config.mak can therefore make version.h rebuilds necessary.

Originally committed as revision 17730 to svn://svn.ffmpeg.org/ffmpeg/trunk

common.mak

@@ -48,7 +48,7 @@ ifeq ($(wildcard $(SVN_ENTRIES)),$(SVN_ENTRIES))
 $(BUILD_ROOT_REL)/version.h: $(SVN_ENTRIES)
 endif
 
-$(BUILD_ROOT_REL)/version.h: $(SRC_PATH_BARE)/version.sh
+$(BUILD_ROOT_REL)/version.h: $(SRC_PATH_BARE)/version.sh config.mak
 	$< $(SRC_PATH) $@ $(EXTRA_VERSION)
 
 install: install-libs install-headers