Build failure: texpresso[-tectonic]

[GaetanLepage]

Nixpkgs version

• Unstable (25.05)

Steps to reproduce

Build texpresso.

Can Hydra reproduce this build failure?

Yes, Hydra can reproduce this build failure.

Link to Hydra build job

https://hydra.nixos.org/build/293344282/nixlog/2

Relevant log output

warning: tectonic_xetex_layout@0.2.4: In file included from /nix/store/3xiw2ng0hg6ck7mzir3wpa1vh6vhsisb-icu4c-76.1-dev/include/unicode/ubidi.h:26,
warning: tectonic_xetex_layout@0.2.4:                  from layout/xetex-XeTeXLayoutInterface.cpp:36:
warning: tectonic_xetex_layout@0.2.4: /nix/store/3xiw2ng0hg6ck7mzir3wpa1vh6vhsisb-icu4c-76.1-dev/include/unicode/localpointer.h:561:26: error: 'auto' parameter not permitted in this context
warning: tectonic_xetex_layout@0.2.4:   561 | template <typename Type, auto closeFunction>
warning: tectonic_xetex_layout@0.2.4:       |                          ^~~~
warning: tectonic_xetex_layout@0.2.4: /nix/store/3xiw2ng0hg6ck7mzir3wpa1vh6vhsisb-icu4c-76.1-dev/include/unicode/localpointer.h:573:76: error: template argument 2 is invalid
warning: tectonic_xetex_layout@0.2.4:   573 |     explicit LocalOpenPointer(std::unique_ptr<Type, decltype(closeFunction)> &&p)
warning: tectonic_xetex_layout@0.2.4:       |                                                                            ^
warning: tectonic_xetex_layout@0.2.4: /nix/store/3xiw2ng0hg6ck7mzir3wpa1vh6vhsisb-icu4c-76.1-dev/include/unicode/localpointer.h:583:78: error: template argument 2 is invalid
warning: tectonic_xetex_layout@0.2.4:   583 |     LocalOpenPointer &operator=(std::unique_ptr<Type, decltype(closeFunction)> &&p) {
warning: tectonic_xetex_layout@0.2.4:       |                                                                              ^
warning: tectonic_xetex_layout@0.2.4: /nix/store/3xiw2ng0hg6ck7mzir3wpa1vh6vhsisb-icu4c-76.1-dev/include/unicode/localpointer.h:599:59: error: template argument 2 is invalid
warning: tectonic_xetex_layout@0.2.4:   599 |     operator std::unique_ptr<Type, decltype(closeFunction)> () && {
warning: tectonic_xetex_layout@0.2.4:       |                                                           ^
warning: tectonic_xetex_layout@0.2.4: /nix/store/3xiw2ng0hg6ck7mzir3wpa1vh6vhsisb-icu4c-76.1-dev/include/unicode/ubidi.h:579:1: note: invalid template non-type parameter
warning: tectonic_xetex_layout@0.2.4:   579 | U_DEFINE_LOCAL_OPEN_POINTER(LocalUBiDiPointer, UBiDi, ubidi_close);
warning: tectonic_xetex_layout@0.2.4:       | ^~~~~~~~~~~~~~~~~~~~~~~~~~~

Additional context

The texpresso-tonic dependency of texpresso is failing.

System metadata

 - system: `"x86_64-linux"`
 - host os: `Linux 6.12.19, NixOS, 25.05 (Warbler), 25.05.20250319.a84ebe2`
 - multi-user?: `yes`
 - sandbox: `yes`
 - version: `nix-env (Nix) 2.24.12`
 - nixpkgs: `/nix/store/1728d3jg85mkz2w2cvk6vi74i30fn6x7-source`

Notify maintainers

cc @NickHu

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[Kek5chen]

texpresso builds for me and texpresso-tonic is not a package that exists.

[Kek5chen]

do you mean tectonic?

[GaetanLepage]

do you mean tectonic?

Oh yes, definitely. It's the in-line dependency.

[Kek5chen]

this is an upstream "issue" that seems to resolve when building locally. Does building locally work for you as well?

[GaetanLepage]

For some reason, it is building fine on master. It was failing, at least on 1750f3c1c89488e2ffdd47cab9d05454dddfb734.

I won't take the time to bisect. Closing then!