detect more broken shells

Originally committed as revision 5926 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-08-03 22:27:38 +00:00 · 2006-08-03 22:27:38 +00:00 · 5237ce67eb
commit 5237ce67eb
parent b3cb5d519f
1 changed files with 2 additions and 1 deletions
--- a/3
+++ b/3
@ -4,7 +4,8 @@
 #

 # make sure we are running under a compatible shell
-(: ${foo%%bar}) 2>/dev/null
+unset foo
+(: ${foo%%bar}) 2>/dev/null && ! (: ${foo?}) 2>/dev/null
 if test "$?" != 0; then
    if test "x$FFMPEG_CONFIGURE_EXEC" = x; then
        FFMPEG_CONFIGURE_EXEC=1