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

#!/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
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			`#!/bin/sh`

			`candidate="$1"`

Revert "make: support: use `command -v' instead of `which'" This reverts commit ca6a2907c27c8171336643d1ab41bd5c34ee3794. Switching to using 'command -v' instead of 'which', opened a can of worms that is hard to fix in a timely manner: - recursive call to 'make' from a post-build, post-iamge script, fails because of a redefinition of HOSTCC_NOCCACHE (a bug on its own that needs a separate fix anyway) [0]; - 'make' believeing it can call "simple" commands with execve() et al. instead of passing them through a shell via system(), and thus failing to find 'command' in the PATH [1]. [0] https://lore.kernel.org/buildroot/20211001175329.GA1973888@lbrmn-mmayer.ric.broadcom.net/T/#m95c17eb8374e4e3dd6eee700d397aa12cca0739e [1] https://lore.kernel.org/buildroot/20211001180304.GV1504958@scaer/T/#m3a8f36bd76ec7d8e5038a6c8932bb6ffe23ea268 Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr> 2021-10-01 20:08:32 +02:00			xzcat=`which $candidate 2>/dev/null`
xzcat: treat as host prerequisite and build if needed If xzcat is not present on the host system, buildroot bails out early asking the developer to install it (xzcat is now a DL_TOOLS_DEPENDENCY) Conversely, when BR2_TARGET_ROOTFS_CPIO_XZ is enabled, then host-xz is a build dependency, and no manual action is required from the developer. Because the second approach is nicer, also build host-xz when xzcat is not available, using the host-prerequisite and suitable-host-pkg mechanisms, already used for tar. Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com> Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> 2013-08-02 11:05:15 +02:00			`if [ ! -x "$xzcat" ]; then`
Revert "make: support: use `command -v' instead of `which'" This reverts commit ca6a2907c27c8171336643d1ab41bd5c34ee3794. Switching to using 'command -v' instead of 'which', opened a can of worms that is hard to fix in a timely manner: - recursive call to 'make' from a post-build, post-iamge script, fails because of a redefinition of HOSTCC_NOCCACHE (a bug on its own that needs a separate fix anyway) [0]; - 'make' believeing it can call "simple" commands with execve() et al. instead of passing them through a shell via system(), and thus failing to find 'command' in the PATH [1]. [0] https://lore.kernel.org/buildroot/20211001175329.GA1973888@lbrmn-mmayer.ric.broadcom.net/T/#m95c17eb8374e4e3dd6eee700d397aa12cca0739e [1] https://lore.kernel.org/buildroot/20211001180304.GV1504958@scaer/T/#m3a8f36bd76ec7d8e5038a6c8932bb6ffe23ea268 Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr> 2021-10-01 20:08:32 +02:00			xzcat=`which xzcat 2>/dev/null`
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			`if [ ! -x "$xzcat" ]; then`
			`# echo nothing: no suitable xzcat found`
			`exit 1`
			`fi`
			`fi`

			`echo $xzcat`