Martin Roth 88428882b8 Makefile.toolchain: Add error if make version will not build the EC
If you try to build the EC codebase with GNU make version 3.81 or
less, you currently get an error:
Makefile.rules:286: *** multiple target patterns.  Stop.

Since this message isn't helpful in letting you know that the version
of make needs to be updated, let's print something more useful.
ERROR: GNU make version 3.82 or higher required. Stop.

TEST=Built with Make 3.81 and saw the new error message. Built with
make 3.82 and 4.0 and the EC built correctly.
BRANCH=None
BUG=None

Change-Id: I5813fd26fa8120742544567c5ae04af01f993f94
Signed-off-by: Martin Roth <martinroth@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/367944
Reviewed-by: David Hendricks <dhendrix@chromium.org>
2016-08-12 13:45:32 -07:00
2016-08-11 16:52:00 -07:00
2012-05-11 09:11:52 -07:00
2016-07-11 21:27:46 -07:00
2014-04-02 19:58:53 +00:00
2015-12-08 20:05:05 -08:00

For an overview of the Embedded Controller firmware, refer to

http://www.chromium.org/chromium-os/2014-firmware-summit

For instructions on building from source, refer to

http://www.chromium.org/chromium-os/ec-development/getting-started-building-ec-images-quickly
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