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Makefile: Disable implicit rules 

This patch disables implicit make rules (like %.o: %.c) from our build
system, since we don't use them and they can cause unexpected results
when there's a mistake in the Makefiles.

BRANCH=None
BUG=chromium:466469
TEST=emerge-falco coreboot fails with only this patch and succeeds with
this and the $(src-to-obj) fix.

Change-Id: I7478adaddbbeaa2226fd941ffacfce2577ba59ba
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: c2543f25f7db61f93be96784eca3f4f65e3ffaa0
Original-Change-Id: Ia6a91f040ad4ef556cf7912cd82a73173dfec8cb
Original-Signed-off-by: Julius Werner <jwerner@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/259947
Original-Reviewed-by: Mike Frysinger <vapier@chromium.org>
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: http://review.coreboot.org/9865
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This commit is contained in:
Julius Werner 2015-03-13 11:05:07 -07:00 committed by Patrick Georgi
parent 8eb99d0524
commit 808a429881
1 changed files with 3 additions and 0 deletions
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Makefile
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@ -74,6 +74,9 @@ ifneq ($(Q),)
endif
endif
# Disable implicit/built-in rules to make Makefile errors fail fast.
.SUFFIXES:
HOSTCC := gcc
HOSTCXX = g++
HOSTCFLAGS := -g