summaryrefslogtreecommitdiff
path: root/Makefile.toolchain
diff options
context:
space:
mode:
authorMartin Roth <martinroth@chromium.org>2016-08-10 16:40:02 -0600
committerchrome-bot <chrome-bot@chromium.org>2016-08-12 13:45:32 -0700
commit88428882b827b818df9b99ca37ef26b8f1927e9a (patch)
tree617853b27d2dc7b263a826f5b8fbcb7d2f5f8aec /Makefile.toolchain
parent0b16cd761a374c37a64192d07f85ab610496844a (diff)
downloadchrome-ec-88428882b827b818df9b99ca37ef26b8f1927e9a.tar.gz
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>
Diffstat (limited to 'Makefile.toolchain')
-rw-r--r--Makefile.toolchain7
1 files changed, 7 insertions, 0 deletions
diff --git a/Makefile.toolchain b/Makefile.toolchain
index 4fbba39a14..015701b6e4 100644
--- a/Makefile.toolchain
+++ b/Makefile.toolchain
@@ -8,6 +8,13 @@
# Toolchain configuration
+min_make_version:=3.82
+make_version_ok:=$(filter $(min_make_version), \
+ $(firstword $(sort $(MAKE_VERSION) $(min_make_version))))
+ifeq ($(make_version_ok),)
+$(error ERROR: GNU make version $(min_make_version) or higher required.)
+endif
+
# Try not to assume too much about optional tools and prefixes
CCACHE:=$(shell which ccache 2>/dev/null)
ifeq ($(origin HOST_CROSS_COMPILE),undefined)