Comment 7 for bug 531736

I could certainly duplicate the libdrm code for drmCheckModesettingSupported to make the kms check unconditionally built.

Are there a lot of cases where someone will build vesa on a system without support for kms and deploy it on a system with support for kms, though?

And I don't think vesa wants to have a hard build-time dependency on a new-enough libdrm does it?