MFC r242706:

MFC r242706:

  Put in a band-aid to get the pc98 bootstraps building, now clang is the
  default compiler.  This has two parts:
  - Make sys/boot/pc98/boot2 always build with gcc for now, until we can
    figure out a way to shrink it enough when building with clang.
  - Since sys/boot/p98/cdboot uses .code16 directives, which are not yet
    supported by clang's integrated assembler, use -no-integrated-as,
    similar to sys/boot/i386/cdboot.

  Reviewed by:	nyan

MFC r242874:

  Work around pc98 tinderbox failures in sys/boot/pc98, by making sure a
  cross gcc gets built during the cross-tools stage.

git-svn-id: svn://svn.freebsd.org/base/stable/9@243190 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f