kernel installation problem on STABLE-11

[Sergey Matveychuk]

Hi.

On FreeBSD 11.0 kernel installation procedure is broken. It does not 
work without COMPILER_TYPE=clang:

make[2]: "/usr/src/share/mk/bsd.compiler.mk" line 145: Unable to 
determine compiler type for CC=cc .  Consider setting COMPILER_TYPE.

Command 'make installworld COMPILER_TYPE=clang KERNCONF=MYKERNERL' works 
fine.

And it looks like it works without COMPILER_TYPE=clang if you buildworld 
before. But I'm not sure.