Require libswscale only if the scale filter is used.

Although with several limitations, lavfi can be compiled and used
without the scale filter.

Originally committed as revision 24570 to svn://svn.ffmpeg.org/ffmpeg/trunk

diff --git a/libavfilter/Makefile b/libavfilter/Makefile
index 6f34ca9..feef16c 100644 (file)
--- a/libavfilter/Makefile
+++ b/libavfilter/Makefile
@@ -1,7 +1,8 @@
 include $(SUBDIR)../config.mak
 
 NAME = avfilter
-FFLIBS = avcodec avcore avutil swscale
+FFLIBS = avcodec avcore avutil
+FFLIBS-$(CONFIG_SCALE_FILTER) += swscale
 
 HEADERS = avfilter.h