Commit 0edfb24c authored by Thomas De Schampheleire's avatar Thomas De Schampheleire Committed by Peter Korsgaard
Browse files

dependencies: check minimal make version early on 



Although support/dependencies/dependencies.sh checks for the version of make,
this script doesn't get a chance to run if make encounters a syntax error as a
result of being too old.

For example, the following syntax is only supported from make 3.81 onwards:

ifeq ($(BR2_TOOLCHAIN_BUILDROOT),y)
include toolchain/toolchain-buildroot.mk
else ifeq ($(BR2_TOOLCHAIN_EXTERNAL),y)
include toolchain/toolchain-external.mk
else ifeq ($(BR2_TOOLCHAIN_CTNG),y)
include toolchain/toolchain-crosstool-ng.mk
endif

This patch adds a check for the version of make very early in the Makefile, so
that old make versions are handled gracefully.

[Peter: simplify check]
Signed-off-by: default avatarThomas De Schampheleire <thomas.de.schampheleire@gmail.com>
Acked-by: default avatarThomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: default avatarPeter Korsgaard <jacmet@sunsite.dk>
parent a792668b

Makefile

+6 −0
Original line number Diff line number Diff line
@@ -26,6 +26,12 @@ 
# Set and export the version string

export BR2_VERSION:=2012.02-git



# Check for minimal make version (note: this check will break at make 10.x)

MIN_MAKE_VERSION=3.81

ifeq ($(firstword $(sort $(MAKE_VERSION) $(MIN_MAKE_VERSION))),$(MAKE_VERSION))

$(error You have make '$(MAKE_VERSION)' installed. GNU make >= $(MIN_MAKE_VERSION) is required)

endif



# This top-level Makefile can *not* be executed in parallel

.NOTPARALLEL: