tectonic: fix darwin build

[mbode]

Motivation for this change

/cc ZHF #36454

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 tectonic

[GrahamcOfBorg]

Success on x86_64-linux (full log)

Attempted: tectonic

Partial log (click to expand)

these paths will be fetched (1.34 MiB download, 4.56 MiB unpacked):
  /nix/store/w5yjnshxybgf9092pagiry3cncpyai43-tectonic-0.1.7
copying path '/nix/store/w5yjnshxybgf9092pagiry3cncpyai43-tectonic-0.1.7' from 'https://cache.nixos.org'...
/nix/store/w5yjnshxybgf9092pagiry3cncpyai43-tectonic-0.1.7

[GrahamcOfBorg]

Success on x86_64-darwin (full log)

Attempted: tectonic

Partial log (click to expand)

cp: -r not specified; omitting directory 'target/release/incremental'
cp: -r not specified; omitting directory 'target/release/native'
cp: -r not specified; omitting directory 'target/release/examples'
cp: -r not specified; omitting directory 'target/release/deps'
cp: -r not specified; omitting directory 'target/release/build'
post-installation fixup
strip is /nix/store/0fzpxnsanc02i4jsb1yhchjp4p62b2n3-cctools-binutils-darwin/bin/strip
stripping (with command strip and flags -S) in /nix/store/773kmzhyy549y4g217hbmfjx8dv8x246-tectonic-0.1.7/bin
patching script interpreter paths in /nix/store/773kmzhyy549y4g217hbmfjx8dv8x246-tectonic-0.1.7
/nix/store/773kmzhyy549y4g217hbmfjx8dv8x246-tectonic-0.1.7

[GrahamcOfBorg]

Failure on aarch64-linux (full log)

Attempted: tectonic

Partial log (click to expand)

   Compiling rustc_typeck v0.0.0 (file:///build/rustc-1.24.0-src/src/librustc_typeck)
   Compiling rustc_allocator v0.0.0 (file:///build/rustc-1.24.0-src/src/librustc_allocator)
   Compiling rustc_const_eval v0.0.0 (file:///build/rustc-1.24.0-src/src/librustc_const_eval)
   Compiling rustc_passes v0.0.0 (file:///build/rustc-1.24.0-src/src/librustc_passes)
   Compiling rustc_lint v0.0.0 (file:///build/rustc-1.24.0-src/src/librustc_lint)
   Compiling rustc_mir v0.0.0 (file:///build/rustc-1.24.0-src/src/librustc_mir)
building of '/nix/store/whsyh46wr0zfkw420xcc8ffgahszsd80-rustc-1.24.0.drv' timed out after 3600 seconds
cannot build derivation '/nix/store/nfjkyviyyy9ly6hq1pj5wzy6qxmd491n-cargo-0.24.0.drv': 1 dependencies couldn't be built
cannot build derivation '/nix/store/8aa80jxzm015v2l3p4bjyr2ha85dhi0z-tectonic-0.1.7.drv': 2 dependencies couldn't be built
�[31;1merror:�[0m build of '/nix/store/8aa80jxzm015v2l3p4bjyr2ha85dhi0z-tectonic-0.1.7.drv' failed

[LnL7]

Thanks!