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

# XZCAT is taken from BR2_XZCAT (defaults to 'xzcat') (see Makefile)
# If it is not present, build our own host-xzcat

ifeq (,$(call suitable-host-package,xzcat,$(XZCAT)))
  DEPENDENCIES_HOST_PREREQ += host-xz
  XZCAT = $(HOST_DIR)/usr/bin/xzcat
endif
xzcat: treat as host prerequisite and build if needed If xzcat is not present on the host system, buildroot bails out early asking the developer to install it (xzcat is now a DL_TOOLS_DEPENDENCY) Conversely, when BR2_TARGET_ROOTFS_CPIO_XZ is enabled, then host-xz is a build dependency, and no manual action is required from the developer. Because the second approach is nicer, also build host-xz when xzcat is not available, using the host-prerequisite and suitable-host-pkg mechanisms, already used for tar. Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com> Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> 2013-08-02 11:05:15 +02:00			`# XZCAT is taken from BR2_XZCAT (defaults to 'xzcat') (see Makefile)`
			`# If it is not present, build our own host-xzcat`

			`ifeq (,$(call suitable-host-package,xzcat,$(XZCAT)))`
			`DEPENDENCIES_HOST_PREREQ += host-xz`
			`XZCAT = $(HOST_DIR)/usr/bin/xzcat`
			`endif`