Move BeOS extralibs handling into configure.

Originally committed as revision 7082 to svn://svn.ffmpeg.org/ffmpeg/trunk

Makefile

@@ -35,10 +35,6 @@ ALLPROGS=$(addsuffix $(EXESUF), $(BASENAMES))
 ALLPROGS_G=$(addsuffix _g$(EXESUF), $(BASENAMES))
 ALLMANPAGES=$(addsuffix .1, $(BASENAMES))
 
-ifeq ($(CONFIG_AUDIO_BEOS),yes)
-EXTRALIBS+=-lmedia -lbe
-endif
-
 ifeq ($(BUILD_SHARED),yes)
 DEP_LIBS=libavcodec/$(SLIBPREF)avcodec$(SLIBSUF) libavformat/$(SLIBPREF)avformat$(SLIBSUF)
 else

configure

@@ -1540,6 +1540,10 @@ if enabled vhook; then
     check_ldflags -export-dynamic
 fi
 
+if enabled audio_beos; then
+    add_extralibs "-lmedia -lbe"
+fi
+
 ##########################################
 # imlib check