The bzip2 package includes wrappers around diff, grep and less/more. These shell scripts currently include /usr/bin (and sometimes /bin) on the PATH, and therefore fail if any of the commands that they rely on cannot be found. By substituting /usr/bin (and /bin) for the appropriate package paths, these scripts work much more reliably. I had some issues with bzmore which uses more from util-linux, I think there might be a circular dependency in the Guix package tree, as I get a VM stack overflow when including util-linux as a input to bzip2. Note that as the bzip2 package is used by so many other packages, any non-superficial change to it probably means rebuilding the world. Below is a script, and two invocations of it, showing first what happens with the unaltered package, and then the package with the modifications I describe above. #!/bin/sh set -x bzip2 < /etc/shells > shells.bz2 bzcmp shells.bz2 shells.bz2 bzdiff shells.bz2 shells.bz2 bzegrep bash shells.bz2 bzfgrep bash shells.bz2 bzgrep bash shells.bz2 bzless shells.bz2 bzmore shells.bz2 → PATH=/gnu/store/s3c442d075fc8a0q0nspc9jjsgjq613p-bzip2-1.0.6/bin ./test.sh + bzip2 + bzcmp shells.bz2 shells.bz2 /gnu/store/s3c442d075fc8a0q0nspc9jjsgjq613p-bzip2-1.0.6/bin/bzcmp: line 16: sed: command not found /gnu/store/s3c442d075fc8a0q0nspc9jjsgjq613p-bzip2-1.0.6/bin/bzcmp: line 40: mktemp: command not found cannot create a temporary file + bzdiff shells.bz2 shells.bz2 /gnu/store/s3c442d075fc8a0q0nspc9jjsgjq613p-bzip2-1.0.6/bin/bzdiff: line 16: sed: command not found /gnu/store/s3c442d075fc8a0q0nspc9jjsgjq613p-bzip2-1.0.6/bin/bzdiff: line 40: mktemp: command not found cannot create a temporary file + bzegrep bash shells.bz2 /gnu/store/s3c442d075fc8a0q0nspc9jjsgjq613p-bzip2-1.0.6/bin/bzegrep: line 11: sed: command not found /gnu/store/s3c442d075fc8a0q0nspc9jjsgjq613p-bzip2-1.0.6/bin/bzegrep: line 43: sed: command not found /gnu/store/s3c442d075fc8a0q0nspc9jjsgjq613p-bzip2-1.0.6/bin/bzegrep: line 63: grep: command not found + bzfgrep bash shells.bz2 /gnu/store/s3c442d075fc8a0q0nspc9jjsgjq613p-bzip2-1.0.6/bin/bzfgrep: line 11: sed: command not found /gnu/store/s3c442d075fc8a0q0nspc9jjsgjq613p-bzip2-1.0.6/bin/bzfgrep: line 43: sed: command not found /gnu/store/s3c442d075fc8a0q0nspc9jjsgjq613p-bzip2-1.0.6/bin/bzfgrep: line 63: grep: command not found + bzgrep bash shells.bz2 /gnu/store/s3c442d075fc8a0q0nspc9jjsgjq613p-bzip2-1.0.6/bin/bzgrep: line 11: sed: command not found /gnu/store/s3c442d075fc8a0q0nspc9jjsgjq613p-bzip2-1.0.6/bin/bzgrep: line 43: sed: command not found /gnu/store/s3c442d075fc8a0q0nspc9jjsgjq613p-bzip2-1.0.6/bin/bzgrep: line 63: grep: command not found + bzless shells.bz2 /gnu/store/s3c442d075fc8a0q0nspc9jjsgjq613p-bzip2-1.0.6/bin/bzless: line 8: sed: command not found ------> shells.bz2 <------ /gnu/store/s3c442d075fc8a0q0nspc9jjsgjq613p-bzip2-1.0.6/bin/bzless: line 55: more: command not found + bzmore shells.bz2 /gnu/store/s3c442d075fc8a0q0nspc9jjsgjq613p-bzip2-1.0.6/bin/bzmore: line 8: sed: command not found ------> shells.bz2 <------ /gnu/store/s3c442d075fc8a0q0nspc9jjsgjq613p-bzip2-1.0.6/bin/bzmore: line 55: more: command not found → PATH=/gnu/store/i3zkljbz6ryqdlfc9gnpcjg964inp9l3-bzip2-1.0.6/bin ./test.sh + bzip2 + bzcmp shells.bz2 shells.bz2 + bzdiff shells.bz2 shells.bz2 + bzegrep bash shells.bz2 /run/current-system/profile/bin/bash /gnu/store/nylrl843mkfdwzz8cd5iabsib37vqc1j-bash-4.4.A/bin/bash + bzfgrep bash shells.bz2 /run/current-system/profile/bin/bash /gnu/store/nylrl843mkfdwzz8cd5iabsib37vqc1j-bash-4.4.A/bin/bash + bzgrep bash shells.bz2 /run/current-system/profile/bin/bash /gnu/store/nylrl843mkfdwzz8cd5iabsib37vqc1j-bash-4.4.A/bin/bash + bzless shells.bz2 ------> shells.bz2 <------ + bzmore shells.bz2 ------> shells.bz2 <------ /gnu/store/i3zkljbz6ryqdlfc9gnpcjg964inp9l3-bzip2-1.0.6/bin/bzmore: line 55: more: command not found
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