PPC: check for x-form asm constraint support

Originally committed as revision 18606 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 2 insertions, 0 deletions

diff --git a/configure b/configure
index 1480515a1b..876a19bb0f 100755
--- a/configure
+++ b/configure
@@ -924,6 +924,7 @@ HAVE_LIST="
     truncf
     VirtualAlloc
     winsock2_h
+    xform_asm
     yasm
 "
 
@@ -1908,6 +1909,7 @@ fi
 
 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)'
 
 # check for SIMD availability