lvm2: build fails due to find yielding a long command line #26552
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Which OpenWrt version are you using? |
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I am working on a prplOS build based on OpenWRT 23.05. |
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Is prplOS supported by us, @ynezz? |
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Thats pre-23.05 package, ask prplos to help with their custom package tree. Or use OpenWrt to complain about this package set |
ynezz
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May 21, 2025
It was reported that in some build environments the install step fails
with following:
find /home/.../buildsystem/build_dir/target-aarch64-unknown-linux-gnu_musl/lvm2-normal/LVM2.2.03.22/ipkg-install/usr/sbin/ -type l -exec cp -fpR -a {} /home/.../buildsystem/build_dir/target-aarch64-unknown-linux-gnu_musl/lvm2-normal/LVM2.2.03.22/.pkgdir/lvm2/sbin/ \;
make[6]: /bin/sh: Argument list too long
This is likely happening once the number of symlinks exceeds the shell's
maximum argument limit.
So lets fix it by switching to more reliable xargs based solution:
print0/xargs -0 to handle filenames with special characters
xargs -r to skip execution if no files are found
cp -t to specify the target directory once instead of for each file
Fixes: openwrt#26552
Signed-off-by: Petr Štetiar <[email protected]>
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In utils/lvm2/Makefile, the following install command creates very long command lines, which can overflow the default limit of 4096 characters.
I experienced build failures in my environment because the PKG_INSTALL_DIR is quite long.
It would be more robust to execute individual cp commands per file.
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