hxtools: many (most?) tools do not work

[Ramblurr]

Nixpkgs version

• Unstable (25.05)

Describe the bug

The hxtools package is improperly packaged. Many of the upstream tools embed the interpreter /bin/bash or /usr/bin/perl, which do not work on nixos.

Steps to reproduce

I personally wanted to use man2html which is how I discovered this bug. Many other utils seem affected too.

$ nix-shell -p hxtools
$ man2html -h
zsh: /nix/store/mil1y8z3519zdc53ljjygr06chdcmc3k-hxtools-20231224/bin/man2html: bad interpreter: /usr/bin/perl: no such file or directory
$ cwdiff -h
zsh: /nix/store/mil1y8z3519zdc53ljjygr06chdcmc3k-hxtools-20231224/bin/cwdiff: bad interpreter: /bin/bash: no such file or directory
$ fxterm
zsh: /nix/store/mil1y8z3519zdc53ljjygr06chdcmc3k-hxtools-20231224/bin/fxterm: bad interpreter: /bin/bash: no such file or directory
$ gpsh
zsh: /nix/store/mil1y8z3519zdc53ljjygr06chdcmc3k-hxtools-20231224/bin/gpsh: bad interpreter: /usr/bin/perl: no such file or directory
$ qtar -h
zsh: /nix/store/mil1y8z3519zdc53ljjygr06chdcmc3k-hxtools-20231224/bin/qtar: bad interpreter: /usr/bin/perl: no such file or director

Expected behaviour

the tools should work

Screenshots

No response

Relevant log output

Additional context

No response

System metadata

• system: "x86_64-linux"
• host os: Linux 6.12.12, NixOS, 25.05 (Warbler), 25.05pre-git
• multi-user?: yes
• sandbox: yes
• version: nix-env (Nix) 2.24.12
• nixpkgs: /nix/store/j33wzkzndh41cyyy7i18bqm1srlv84cq-source

Notify maintainers

@meator @zimward

Note for maintainers: Please tag this issue in your pull request description. (i.e. Resolves #ISSUE.)

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• I assert that this is a bug and not a support request.
• I assert that this is not a duplicate of an existing issue.
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