also put the CONFIG_FOOBAR_EN/DECODER stuff in config.mak

Originally committed as revision 4172 to svn://svn.ffmpeg.org/ffmpeg/trunk

configure

@@ -1590,6 +1590,7 @@ fi
 
 for codec in $CODEC_LIST ; do
     echo "#define CONFIG_`echo $codec | awk '{$1=toupper($1)}1'` 1" >> $TMPH
+    echo "CONFIG_`echo $codec | awk '{$1=toupper($1)}1'`=yes" >> config.mak
 done
 
 diff $TMPH config.h >/dev/null 2>&1