The changes due to GPLv3 (non-discriminatory patent licence etc.) seem to be incompatible with the interests of BSD people [1] as well as perhaps Apple, who is

The changes due to GPLv3 (non-discriminatory patent licence etc.) seem to be incompatible with the interests of BSD people [1] as well as perhaps Apple, who is the main sponsor. [1] http://wiki.freebsd.org/BuildingFreeBSDWithClang http://wiki.freebsd.org/BuildingFreeBSDWithClang