buildroot/support/dependencies/check-host-xzcat.sh
Thomas De Schampheleire d1f325f554 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>
2013-09-06 23:30:36 +02:00

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#!/bin/sh
candidate="$1"
xzcat=`which $candidate 2>/dev/null`
if [ ! -x "$xzcat" ]; then
xzcat=`which xzcat 2>/dev/null`
if [ ! -x "$xzcat" ]; then
# echo nothing: no suitable xzcat found
exit 1
fi
fi
echo $xzcat