kumquat-buildroot/support/dependencies/check-host-tar.mk

TAR ?= tar

ifeq (,$(call suitable-host-package,tar,$(TAR)))
DEPENDENCIES_HOST_PREREQ += host-tar
TAR = $(HOST_DIR)/usr/bin/tar
endif

# Since TAR is at least 1.17, it will certainly support --strip-components
TAR_STRIP_COMPONENTS = --strip-components
dependencies: build a host-tar if no suitable tar can be found Some toolchains, like the one built with buildroot itself, use hardlinks (for example to link between the c++ and g++ binary). Unpacking such a toolchain with the --strip-components options does not work correctly if the system tar is too old (<1.17). Even recent releases of RedHat/CentOS still ship with tar 1.15. This patch checks for a suitable tar version (tar 1.17+) on the host system, and adds host-tar to the host dependencies if none can be found. host-tar is download and extracted as cpio.gz instead of tar.gz, to prevent chicken-egg problem. Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com> v4 Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be> Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> 2012-02-08 17:22:20 +01:00			`TAR ?= tar`

			`ifeq (,$(call suitable-host-package,tar,$(TAR)))`
package: indentation cleanup Signed-off-by: Jerzy Grzegorek <jerzy.grzegorek@trzebnica.net> Signed-off-by: Peter Korsgaard <peter@korsgaard.com> 2014-10-24 07:57:37 +02:00			`DEPENDENCIES_HOST_PREREQ += host-tar`
			`TAR = $(HOST_DIR)/usr/bin/tar`
dependencies: build a host-tar if no suitable tar can be found Some toolchains, like the one built with buildroot itself, use hardlinks (for example to link between the c++ and g++ binary). Unpacking such a toolchain with the --strip-components options does not work correctly if the system tar is too old (<1.17). Even recent releases of RedHat/CentOS still ship with tar 1.15. This patch checks for a suitable tar version (tar 1.17+) on the host system, and adds host-tar to the host dependencies if none can be found. host-tar is download and extracted as cpio.gz instead of tar.gz, to prevent chicken-egg problem. Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com> v4 Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be> Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> 2012-02-08 17:22:20 +01:00			`endif`

			`# Since TAR is at least 1.17, it will certainly support --strip-components`
			`TAR_STRIP_COMPONENTS = --strip-components`