mp3blaster: fix darwin build

[knedlsepp]

Motivation for this change

18.03 ZHF darwin edition: #36454 (Please backport to 18.03!)

Things done

• Tested using sandboxing (nix.useSandbox on NixOS, or option build-use-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/)
• Fits CONTRIBUTING.md.

---

[LnL7]

@GrahamcOfBorg build mp3blaster

[GrahamcOfBorg]

Success on aarch64-linux (full log)

Attempted: mp3blaster

Partial log (click to expand)

these paths will be fetched (0.14 MiB download, 0.70 MiB unpacked):
  /nix/store/aqdvzjd9qzqhayb1jir1ywpx4rh39jss-mp3blaster-3.2.6
copying path '/nix/store/aqdvzjd9qzqhayb1jir1ywpx4rh39jss-mp3blaster-3.2.6' from 'https://cache.nixos.org'...
/nix/store/aqdvzjd9qzqhayb1jir1ywpx4rh39jss-mp3blaster-3.2.6

[GrahamcOfBorg]

Success on x86_64-darwin (full log)

Attempted: mp3blaster

Partial log (click to expand)

 /nix/store/s28xb9v7xf6axvf4a3av2mnczws2hsdg-coreutils-8.29/bin/mkdir -p '/nix/store/wkssjy4dv6wsm66fhynm5y1x9iny6v63-mp3blaster-3.2.6/share/man/man1'
 /nix/store/s28xb9v7xf6axvf4a3av2mnczws2hsdg-coreutils-8.29/bin/install -c -m 644 mp3blaster.1 nmixer.1 splay.1 '/nix/store/wkssjy4dv6wsm66fhynm5y1x9iny6v63-mp3blaster-3.2.6/share/man/man1'
make[2]: Leaving directory '/private/tmp/nix-build-mp3blaster-3.2.6.drv-0/source'
make[1]: Leaving directory '/private/tmp/nix-build-mp3blaster-3.2.6.drv-0/source'
post-installation fixup
gzipping man pages under /nix/store/wkssjy4dv6wsm66fhynm5y1x9iny6v63-mp3blaster-3.2.6/share/man/
strip is /nix/store/vb6mgjqgd9h11nbv60fvrp1ls9nxck2y-cctools-binutils-darwin/bin/strip
stripping (with command strip and flags -S) in /nix/store/wkssjy4dv6wsm66fhynm5y1x9iny6v63-mp3blaster-3.2.6/bin
patching script interpreter paths in /nix/store/wkssjy4dv6wsm66fhynm5y1x9iny6v63-mp3blaster-3.2.6
/nix/store/wkssjy4dv6wsm66fhynm5y1x9iny6v63-mp3blaster-3.2.6

[GrahamcOfBorg]

Success on x86_64-linux (full log)

Attempted: mp3blaster

Partial log (click to expand)

these paths will be fetched (0.14 MiB download, 0.72 MiB unpacked):
  /nix/store/r9hfdskfhcwcxvsgv6gzc2iv5fs22b9d-mp3blaster-3.2.6
copying path '/nix/store/r9hfdskfhcwcxvsgv6gzc2iv5fs22b9d-mp3blaster-3.2.6' from 'https://cache.nixos.org'...
/nix/store/r9hfdskfhcwcxvsgv6gzc2iv5fs22b9d-mp3blaster-3.2.6