kumquat-buildroot/support/dependencies/check-host-xzcat.sh
Yann E. MORIN 556a0a1104 Revert "make: support: use command -v' instead of which'"
This reverts commit ca6a2907c2.

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 20:09:58 +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