Request 16-byte aligned stack with icc on x86_32

Originally committed as revision 25145 to svn://svn.ffmpeg.org/ffmpeg/trunk

diff --git a/configure b/configure
index 025b990..7ba7dae 100755 (executable)
--- a/configure
+++ b/configure
@@ -2898,6 +2898,7 @@ if enabled icc; then
     check_ldflags -march=$cpu
     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
     enable ebp_available
+    enabled x86_32 && check_cflags -falign-stack=maintain-16-byte
 elif enabled ccc; then
     # disable some annoying warnings
     add_cflags -msg_disable cvtu32to64