Change:
# export parts of the build environment for script in "$out"/bin/*; do <ins> # e.g. NIX_CC_WRAPPER_TARGET_HOST_x86_64_unknown_linux_gnu nix_cc_wrapper_target_host="$(printenv | grep ^NIX_CC_WRAPPER_TARGET_HOST | sed 's/=.*//')" # e.g. NIX_BINTOOLS_WRAPPER_TARGET_HOST_x86_64_unknown_linux_gnu nix_bintools_wrapper_target_host="$(printenv | grep ^NIX_BINTOOLS_WRAPPER_TARGET_HOST | sed 's/=.*//')" </ins> wrapProgram "$script"  --set FAUSTLDDIR "${faust}/lib"  --set FAUSTLIB "${faust}/share/faust" 

Discussion:
Describe the bug is a language that can be compiled to many targets. It has scripts that will do this for you, like faust2alsa, which will generate a alsa program with a GTK ui, or faust2alqt, which will generate an alsa + QT one. Some of those will work as expected, others only inside a nix-shell. To Reproduce Steps to reproduce the behavior: /tmp && touch && echo 'process=+;' -env -iA nixos.faust2alqt 2alqt Working version: /tmp && touch && echo 'process=+;' -env -iA nixos.faust2alqt -shell $NIXPKGS -A magnetophonDSP.faustCompressors 2alqt ./tst Additional context All faust scripts used to work up until . I've created this new issue cause the old one only mentioned faust2lv2 and could be worded clearer. To test in a normal shell: To test in nix-shell, use this working in normal shell faust2csound faust2firefox faust2jack faust2ladspa only working in nix-shell faust2alqt faust2jaqt faust2lv2 working in neither faust2alsa The ones that only work in nix-shell claim they are missing dependencies when used in the normal shell, for example this one from faust2alqt: I'll spare you the errors for the other examples, as I assume they all have the same root cause. Let me know if I should provide them anyway. ` is a wrapped shell-script. I tried to debug by adding some relevant echo statements to it, echoing the exact gcc command being called, and echoing env | grep boost. It outputs the exact same thing if I run it from normal shell or nix-shell. I also tried reverting the last few faust commits and rebuilding from there. No dice. It would be great to figure out why some only work in nix-shell and even better to fix it! Hints how to troubleshoot further are greatly appreciated. In my upcoming PR for a faust update, at least none of the scripts are broken in both shells. Metadata system: host os: multi-user?

: sandbox: version: channels(bart): channels(root): nixpkgs: Maintainer information:
Would you mind taking a look?
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still important to me
I marked this as stale due to inactivity. &rarr;
I believe this is a fix; are you able to test this? I successfully compiled your example with . (or my branch here )
Thank you :100: times! Everything works as expected! Do you want to do a PR, or shall I?