K 10
svn:author
V 6
emaste
K 8
svn:date
V 27
2018-11-03T19:31:11.571968Z
K 7
svn:log
V 295
libcompat: disable retpoline when building build tools

These are built with the host toolchain which may not support retpoline.
While here, move the MK_ overrides to a separate line and sort them
alphabetically to support future changes.

MFC with:	r339511
Sponsored by:	The FreeBSD Foundation

END