Created attachment 68040 [details]
Log of a failed build

Trying to build it against:
libdrm 2.4.39
mesa snapshot from 9.0 branch at 09/22/2012
xorg 1.13.0.

The build fails with this error (see the whole build log attached below):
kgem.c: In function 'kgem_bo_export_to_prime':
kgem.c:2849: error: 'O_CLOEXEC' undeclared (first use in this function)
kgem.c:2849: error: (Each undeclared identifier is reported only once
kgem.c:2849: error: for each function it appears in.)

This is the code snippet from kgem.c, indicated by the error message
**************************************
int kgem_bo_export_to_prime(struct kgem *kgem, struct kgem_bo *bo)
{
#ifdef DRM_IOCTL_PRIME_HANDLE_TO_PRIME
 struct drm_prime_handle args;

 VG_CLEAR(args);
 args.handle = bo->handle;
 args.flags = DRM_CLOEXEC;  // <== this is line 2849

 if (drmIoctl(kgem->fd, DRM_IOCTL_PRIME_HANDLE_TO_FD, &args))
 return -1;

 bo->reusable = false;
 return args.fd;
#else
 return -1;
#endif
******************************************

It was added with the df68723baae71498de95924c72d4f23fa7fc7fdf commit at the starting of the month of september (09/04).