[SCM] libav/experimental: configure: detect Loongson MIPS extensions

[siretart at users.alioth.debian.org]

The following commit has been merged in the experimental branch:
commit 85dd97adff3560b5d3c79f6cd12b59f1d3c771ca
Author: Måns Rullgård <mans at mansr.com>
Date:   Thu May 28 23:19:29 2009 +0000

    configure: detect Loongson MIPS extensions
    
    Originally committed as revision 18978 to svn://svn.ffmpeg.org/ffmpeg/trunk

diff --git a/configure b/configure
index 590853e..c35bfbb 100755
--- a/configure
+++ b/configure
@@ -897,6 +897,7 @@ HAVE_LIST="
     libdc1394_1
     libdc1394_2
     llrint
+    loongson
     lrint
     lrintf
     lzo1x_999_compress
@@ -1916,6 +1917,8 @@ fi
 
 # check for assembler specific support
 
+enabled mips && check_asm loongson '"dmult.g $1, $2, $3"'
+
 enabled ppc && check_asm dcbzl '"dcbzl 0, 1"'
 enabled ppc && check_asm ppc4xx '"maclhw r10, r11, r12"'
 enabled ppc && check_asm xform_asm '"lwzx 0, %y0" :: "Z"(*(int*)0)'

-- 
Libav/FFmpeg packaging