Improve parsing of --cpu parameter in abuild script.

* -c "" need never be tested if getopt params are handled; fail abuild script when getopt parsing fails
* use expr to resolve numeric test fails with -c max
* cpus variable may be being passed in the environment.  Don't overwrite MAKEFLAGS if it is not.

Change-Id: I96236ef719a1a9f942b8e15bfcf015d60068e58a
Signed-off-by: Raymond Danks <ray.danks@se-eng.com>
Reviewed-on: http://review.coreboot.org/1068
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>

0 files changed, 0 insertions, 0 deletions