Patch merged into master: 036c126 buildgcc: Break if parts of the toolchain are missing

the following patch was just integrated into master:
commit 036c126975c8c2edb198759d06ee1694c26068aa
Author: Patrick Georgi 
Date:   Sun Jul 17 11:36:10 2011 +0200

buildgcc: Break if parts of the toolchain are missing

We test for the presence of a couple of tools and even print an error.
    But the tool didn't stop there.

Change-Id: I40dcf7894408ea7b24d5f68c76df4b7541f469bd
    Signed-off-by: Patrick Georgi

See http://review.coreboot.org/111 for details.

-gerrit