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configure: check yasm/nasm for working pextrd opcode
authorAnssi Hannula <anssi.hannula@iki.fi>
Sun, 6 Feb 2011 05:58:02 +0000 (07:58 +0200)
committerMichael Niedermayer <michaelni@gmx.at>
Wed, 9 Feb 2011 02:30:01 +0000 (03:30 +0100)
NASM versions older than 2.08 fail to build ffmpeg with several
"error: operation size not specified" errors but this is not caught in
configure.

Fix that by checking if "pextrd [eax], xmm0, 1" works in configure.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 48545a8f724247853c5b1d4e0a24e3ea3ee06515)

configure

index e68d568..2f1263f 100755 (executable)
--- a/configure
+++ b/configure
@@ -2672,7 +2672,7 @@ EOF
             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
         esac
 
-        check_yasm "pabsw xmm0, xmm0" && enable yasm ||
+        check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
             die "yasm not found, use --disable-yasm for a crippled build"
     fi