abuild: more verbose configuration step

Also pass V=1 to the configuration step, if requested.

Change-Id: If8b413d65d6bac34efab63614d039d74d920c8db
Reviewed-on: http://review.coreboot.org/5492
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
abuild: break early if building tools fails

Change-Id: I8da04df024a31c780b924a586d056a5351845153
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/4773
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
buildsystem: check for coreboot toolchain by default

Other toolchains just don't cut it.

Change-Id: I7a0bdf60d89b5166c9a22c9e9f3f326b28f777b8
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/4584
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
sconfig: Fix build dependencies

In some cases the build system tried to build main.c before
copying the various "shipped" files (lex/yacc output) where
the place the compiler expects them.

Make the dependency explicit.

Change-Id: Iacef5292aadb9fe7bc967aa4ab5ee6c9fe4df3d7
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/5510
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>