[FFmpeg-cvslog] configure: add filter_out() function

[Mans Rullgard]

ffmpeg | branch: master | Mans Rullgard <mans at mansr.com> | Tue Jan 25 14:44:07 2011 +0000| [9c5c348eefcef41b1d0e459348dadeeb731e8b59] | committer: Michael Niedermayer

configure: add filter_out() function

This adds a function to filter out words matching a pattern
from a list.

Signed-off-by: Mans Rullgard <mans at mansr.com>
(cherry picked from commit 9d201b260627aacdb00e4a54622849aca11d85ee)

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=9c5c348eefcef41b1d0e459348dadeeb731e8b59
---

 configure |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/configure b/configure
index cb4fe88..8f34e97 100755
--- a/configure
+++ b/configure
@@ -321,6 +321,14 @@ filter(){
     done
 }
 
+filter_out(){
+    pat=$1
+    shift
+    for v; do
+        eval "case $v in $pat) ;; *) echo $v ;; esac"
+    done
+}
+
 map(){
     m=$1
     shift