From 86601915d2b2dadd70cba02b0af2ac761364d75c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?M=C3=A5ns=20Rullg=C3=A5rd?= <mans@mansr.com>
Date: Tue, 20 Jul 2010 18:10:27 +0000
Subject: [PATCH] Rerun configure when all*.c files have changed

Originally committed as revision 24370 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 Makefile | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 9b9f7f8006..8949fdac30 100644
--- a/Makefile
+++ b/Makefile
@@ -56,6 +56,9 @@ $(PROGS): %$(EXESUF): %_g$(EXESUF)
 	$(CP) $< $@
 	$(STRIP) $@
 
+config.h: .config
+.config: $(wildcard $(FFLIBS:%=$(SRC_DIR)/lib%/all*.c))
+
 SUBDIR_VARS := OBJS FFLIBS CLEANFILES DIRS TESTPROGS EXAMPLES SKIPHEADERS \
                ALTIVEC-OBJS MMX-OBJS NEON-OBJS X86-OBJS YASM-OBJS-FFT YASM-OBJS \
                HOSTPROGS BUILT_HEADERS TESTOBJS ARCH_HEADERS
@@ -164,8 +167,9 @@ distclean::
 	$(RM) $(DISTCLEANSUFFIXES)
 	$(RM) version.h config.* libavutil/avconfig.h
 
-config:
+config .config:
 	$(SRC_PATH)/configure $(value FFMPEG_CONFIGURATION)
+	@touch .config
 
 # regression tests