util/crossgcc: Add bootstrap-only mode

buildgcc -B (--bootstrap-only) builds only a bootstrap compiler. That
useful if you want to package the cross compilers: first build the
bootstrap compiler, then all required cross compilers in a separate
directory (using the bootstrap compiler through an adjusted PATH).

Change-Id: I089b51d1b898d4cf530845ba51283997fd229451
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/21683
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

0 files changed, 0 insertions, 0 deletions