direnv: make cross-compile on windows

[Mic92]

Motivation for this change

show case of #50835 do not merge.

Things done

• Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS)
• Built on platform(s)
  • NixOS
  • macOS
  • other Linux distributions
• Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
• Tested compilation of all pkgs that depend on this change using nix-shell -p nox --run "nox-review wip"
• Tested execution of all binary files (usually in ./result/bin/)
• Determined the impact on package closure size (by running nix path-info -S before and after)
• Assured whether relevant documentation is up to date
• Fits CONTRIBUTING.md.

---

[GrahamcOfBorg]

Success on aarch64-linux (full log)

Attempted: direnv, go_1_11

Partial log (click to expand)

stripping (with command strip and flags -S) in /nix/store/q5lfnw5lzcb5l6qzgxfi69n3azk9x7g4-direnv-2.18.1-bin/bin
patching script interpreter paths in /nix/store/q5lfnw5lzcb5l6qzgxfi69n3azk9x7g4-direnv-2.18.1-bin
checking for references to /build/ in /nix/store/q5lfnw5lzcb5l6qzgxfi69n3azk9x7g4-direnv-2.18.1-bin...
cannot find section .dynamic
shrinking RPATHs of ELF executables and libraries in /nix/store/0chyvxllsmw0jgzi7l184nmc9ypdv34y-direnv-2.18.1
strip is /nix/store/yyx28sl7a9n4xs9f82v0llpvrmryanan-binutils-2.30/bin/strip
patching script interpreter paths in /nix/store/0chyvxllsmw0jgzi7l184nmc9ypdv34y-direnv-2.18.1
checking for references to /build/ in /nix/store/0chyvxllsmw0jgzi7l184nmc9ypdv34y-direnv-2.18.1...
/nix/store/q5lfnw5lzcb5l6qzgxfi69n3azk9x7g4-direnv-2.18.1-bin
/nix/store/plicr05pvfjwijnl8rzjx9p5h6ldb4ps-go-1.11.2

[GrahamcOfBorg]

Success on x86_64-darwin (full log)

Attempted: direnv, go_1_11

Partial log (click to expand)

cp -R man/*.1 /nix/store/qw76dl1dqg25529n1myk7aziapsvf1bl-direnv-2.18.1-bin/share/man/man1
post-installation fixup
gzipping man pages under /nix/store/qw76dl1dqg25529n1myk7aziapsvf1bl-direnv-2.18.1-bin/share/man/
strip is /nix/store/4wic98ibvzb79nfrlq4gjpnys6d1ywl6-cctools-binutils-darwin/bin/strip
stripping (with command strip and flags -S) in /nix/store/qw76dl1dqg25529n1myk7aziapsvf1bl-direnv-2.18.1-bin/bin
patching script interpreter paths in /nix/store/qw76dl1dqg25529n1myk7aziapsvf1bl-direnv-2.18.1-bin
strip is /nix/store/4wic98ibvzb79nfrlq4gjpnys6d1ywl6-cctools-binutils-darwin/bin/strip
patching script interpreter paths in /nix/store/brd8j1bv3pixj2lgvf6pw8mxy5pwmc83-direnv-2.18.1
/nix/store/qw76dl1dqg25529n1myk7aziapsvf1bl-direnv-2.18.1-bin
/nix/store/9ay538168bq5yr5khnwillhxiwyir1rp-go-1.11.2

[GrahamcOfBorg]

Success on x86_64-linux (full log)

Attempted: direnv, go_1_11

Partial log (click to expand)

stripping (with command strip and flags -S) in /nix/store/20smh811vqvjyi7mz4pg5d5y6hm447nj-direnv-2.18.1-bin/bin
patching script interpreter paths in /nix/store/20smh811vqvjyi7mz4pg5d5y6hm447nj-direnv-2.18.1-bin
checking for references to /build/ in /nix/store/20smh811vqvjyi7mz4pg5d5y6hm447nj-direnv-2.18.1-bin...
cannot find section .dynamic
shrinking RPATHs of ELF executables and libraries in /nix/store/c3c0lhw3zr636dna6g2jrf22ya6wsvbd-direnv-2.18.1
strip is /nix/store/br51frm28n8n85bs9wrcx6g8rpa42ain-binutils-2.30/bin/strip
patching script interpreter paths in /nix/store/c3c0lhw3zr636dna6g2jrf22ya6wsvbd-direnv-2.18.1
checking for references to /build/ in /nix/store/c3c0lhw3zr636dna6g2jrf22ya6wsvbd-direnv-2.18.1...
/nix/store/20smh811vqvjyi7mz4pg5d5y6hm447nj-direnv-2.18.1-bin
/nix/store/xkbjgmigkpzdmwv84y20cwpipvzlp5ih-go-1.11.2