properly detect cpu on x86 based mac

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@17664 b3059339-0415-0410-9bf9-f77b7e298cf2

configure

@@ -769,7 +769,7 @@ elif test -r /compat/linux/proc/cpuinfo && not x86 ; then
   # FreeBSD with Linux emulation /proc mounted,
   # extract CPU information from it
   _cpuinfo="cat /compat/linux/proc/cpuinfo"
-elif darwin ; then
+elif darwin && not x86 ; then
   # use hostinfo on Darwin
   _cpuinfo="hostinfo"
 elif aix; then
@@ -2295,6 +2295,7 @@ if test "$_vidix" = auto ; then
   qnx && _vidix=no
   sunos && _vidix=no
   beos && _vidix=no
+  darwin && _vidix=no
 fi
 
 echocheck "mplayer binary name"