(name . bug-guix)(address . bug-guix@gnu.org)
87a5g1o8pc.fsf@gmail.com
Hi,
I believe wrap-program should be using
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exec -a ${0##*/} ...
instead of
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exec -a "$0" ...
as the later will use the full file name of the command
(/gnu/store/.../bin/something) instead of just the command name, which
is more conventional.
I made this discovery while investigating a segfault that occured in a
wrapped 'cling'; adjusting the wrapper script to read as:
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#!/gnu/store/3jhfhxdf6v5ms10x5zmnl166dh3yhbr1-bash-minimal-5.1.16/bin/bash
exec -a ${0##*/} "/gnu/store/0ccm05058yjd5qi8hcdr70ymhf9q6cc2-cling-1.1/bin/.cling-real" "$@"
where the value of -a becomes 'cling' instead of its full file name
resolved the issue. The original wrapper reads like:
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#!/gnu/store/3jhfhxdf6v5ms10x5zmnl166dh3yhbr1-bash-minimal-5.1.16/bin/bash
exec -a "$0" "/gnu/store/l8875yavr1nls7n3i3yx8ah0s1lasn43-cling-1.1/bin/.cling-real" "$@"
It's probably rare that this "problem" would manifest itself so
critically, but still, I think it'd be good to adjust our wrap-program
procedure. I'll send a patch.
--
Thanks,
Maxim