Change V4L2 MPEG decoder check so it can actually fail

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@23943 b3059339-0415-0410-9bf9-f77b7e298cf2

1 files changed, 6 insertions, 4 deletions

diff --git a/configure b/configure
index ffb52b070d..7d33a53830 100755
--- a/configure
+++ b/configure
@@ -4836,11 +4836,13 @@ if test "$_v4l2" = auto ; then
 #include <linux/videodev2.h>
 #include <linux/version.h>
 int main(void) {
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22)
-  return 0;
-#else
-  return -1;
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,22)
+#error kernel headers too old, need 2.6.22
+  bad_kernel_version();
 #endif
+  struct v4l2_ext_controls ctrls;
+  ctrls.ctrl_class = V4L2_CTRL_CLASS_MPEG;
+  return 0;
 }
 EOF
   _v4l2=no