In reply to @hexa:lossy.network
for python every bulk update burns me out for a while

It looks like Configure tries to detect the path to the shell, and I can see from the built config.h that it found /bin/sh:

$ grep SH_PATH /nix/store/afz9z2iczjx13i66ymwwinwp2zvgc1ck-perl-5.38.0/lib/perl5/5.38.0/x86_64-linux-thread-multi/CORE/config.h 
/* SH_PATH:
#define SH_PATH "/bin/sh"  /**/

In reply to @stigo:matrix.org
What are you trying to do specifically? Do you have an example I can look at?

I packaged it just fine, but the resulting program fails with

Can't exec "/bin/sh": No such file or directory at /nix/store/yc09sxq40aaai2141cv1d32c7wflh90c-equivs-2.3.1/bin/equivs-build line 54.

In reply to @stigo:matrix.org
What are you trying to do specifically? Do you have an example I can look at?

Here's something you can drop in flake.nix and try building with nix build -L .#:

{
  outputs = { self, nixpkgs }:
    let
      pkgs = import nixpkgs { system = "x86_64-linux"; };
    in {
      packages.x86_64-linux.default = pkgs.runCommand "foo" {
        nativeBuildInputs = [pkgs.perlPackages.perl];
      } ''
        ls -l /bin/sh || :
        perl -e 'system("echo bash version \$BASH_VERSION") == 0 or die "system failed: $!"'
      '';
    };
}

Without a working /bin/sh in my sandbox (check the nix-daemon sandbox-paths setting), I get:

$ nix build -L .#
foo> ls: cannot access '/bin/sh': No such file or directory
foo> system failed: No such file or directory at -e line 1.
error: builder for '/nix/store/4pvz9fm4lsg5x0b0hcnf19wpvvkkg4cr-foo.drv' failed with exit code 2;
       last 2 log lines:
       > ls: cannot access '/bin/sh': No such file or directory
       > system failed: No such file or directory at -e line 1.
       For full logs, run 'nix log /nix/store/4pvz9fm4lsg5x0b0hcnf19wpvvkkg4cr-foo.drv'.