You've chosen to create symlinks to the clang compiler binaries if they exist.
While it's known to be safe to build world with clang/ccache, it is not fully
supported yet. You have been warned.

You should define CCACHE_CPP2=1 in your /etc/make.conf until bug 8460 is fixed.

See:
	https://bugzilla.samba.org/show_bug.cgi?id=8460
	https://bugzilla.samba.org/show_bug.cgi?id=8118