diff options
| author | Thomas De Schampheleire <patrickdepinguin+buildroot@gmail.com> | 2012-02-08 17:22:20 +0100 |
|---|---|---|
| committer | Peter Korsgaard <jacmet@sunsite.dk> | 2012-02-09 22:59:21 +0100 |
| commit | fd10b42ab8db0cd5d2f3c9076d54244c6e0e60a8 (patch) | |
| tree | b3a8b79de79bc23d14a69c401d77eb5bacee1f95 /package/tar/tar.mk | |
| parent | 1bbf39bd733007f2bda799622147924008a5d44c (diff) | |
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>
Diffstat (limited to 'package/tar/tar.mk')
| -rw-r--r-- | package/tar/tar.mk | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/package/tar/tar.mk b/package/tar/tar.mk index edbd9bdc7..9e856b53f 100644 --- a/package/tar/tar.mk +++ b/package/tar/tar.mk @@ -10,6 +10,19 @@ TAR_SITE = $(BR2_GNU_MIRROR)/tar # Prefer full-blown tar over buybox's version ifeq ($(BR2_PACKAGE_BUSYBOX),y) TAR_DEPENDENCIES += busybox +HOST_TAR_DEPENDENCIES = endif $(eval $(call AUTOTARGETS)) + +# host-tar: use cpio.gz instead of tar.gz to prevent chicken-egg problem +# of needing tar to build tar. +HOST_TAR_SOURCE = tar-$(TAR_VERSION).cpio.gz +define HOST_TAR_EXTRACT_CMDS + mkdir -p $(@D) + cd $(@D) && \ + $(INFLATE.gz) $(DL_DIR)/$(HOST_TAR_SOURCE) | cpio -i + mv $(@D)/tar-$(TAR_VERSION)/* $(@D) + rmdir $(@D)/tar-$(TAR_VERSION) +endef +$(eval $(call AUTOTARGETS,host)) |