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Use ?= for MK_DIR in firmware.mk

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APU requires the use of ?= for MK_DIR but the use of lastword was
causing MK_DIR to be a subdir of makefiles. Changed lastword to
firstword (which is always the path to firmware.mk) which fixed
the problem.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>
This commit is contained in:
Mark Charlebois 2015-06-16 09:54:34 -07:00
parent 17b23f4e80
commit 84bf4bb6bb
1 changed files with 1 additions and 2 deletions
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3
makefiles/firmware.mk
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@ -101,7 +101,7 @@
# If PX4_BASE wasn't set previously, work out what it should be
# and set it here now.
#
MK_DIR := $(dir $(lastword $(MAKEFILE_LIST)))
MK_DIR ?= $(dir $(firstword $(MAKEFILE_LIST)))
ifeq ($(PX4_BASE),)
export PX4_BASE := $(abspath $(MK_DIR)/..)
endif
@ -111,7 +111,6 @@ $(error Cannot build when the PX4_BASE path contains one or more space character
endif
$(info % GIT_DESC = $(GIT_DESC))
$(info % MK_DIR = $(MK_DIR))
#
# Set a default target so that included makefiles or errors here don't