Nix stuff

[TheSunCat]

Hi! I'm working on a NixOS project with SDL3, and I wanted to see how you have it set up. Cloning tomato locally and running nix build however fails, with this log tail:

       > -- Configuring SDL3_image 3.0.0
       > -- Performing Test CHECK_CPU_ARCHITECTURE_X64
       > -- Performing Test CHECK_CPU_ARCHITECTURE_X64 - Success
       > -- SDL3_image: Using system libavif
       > -- Dynamic libavif: libavif.so.16
       > -- Found JPEG: /nix/store/x7p3dkj051g47q81kg7f79rxgm4p9xs7-libjpeg-turbo-3.0.3/lib/libjpeg.so (found version "62")
       > -- SDL3_image: Using system libjpeg
       > -- Dynamic libjpeg: libjpeg.so.62
       > -- Found libjxl: /nix/store/sr5n74ak13m4a70ywb5v7xkaziyqhbq1-libjxl-0.10.2/lib/libjxl.so
       > -- SDL3_image: Using system libjxl
       > -- Dynamic libjxl: libjxl.so.0.10
       > -- Found ZLIB: /nix/store/v2ny69wp81ch6k4bxmp4lnhh77r0n4h1-zlib-1.3.1/lib/libz.so (found version "1.3.1")
       > -- Found PNG: /nix/store/q0wnlhb6ms8v624faknfdc3z0h6nrp35-libpng-apng-1.6.43/lib/libpng.so (found version "1.6.43")
       > -- SDL3_image: Using system libpng
       > -- Dynamic libpng: libpng16.so.16
       > -- Could NOT find TIFF (missing: TIFF_LIBRARY TIFF_INCLUDE_DIR)
       > -- libtiff NOT found
       > -- SDL3_image backends:
       > -- - enabled:  avif bmp gif jpg jxl lbm pcx png pnm svg tga xcf xpm xv
       > -- - disabled: stb imageio wic qoi tif webp
       > -- Configuring incomplete, errors occurred!

It's strange because you disable tif from SDL3_image backends, but it is still looking for the library.

[Green-Sky]

I'm working on a NixOS project with SDL3, and I wanted to see how you have it set up.

Yea ... SDL with nix is a pain, since it needs to load libs dynamically by itself.
I know vulkan does not work with the current nix code. Also it is kind of hacky and needs a rewrite, but it works I guess.

It's strange because you disable tif from SDL3_image backends, but it is still looking for the library.

I don't know this one, might be an SDL_Image issue.
I do not explicitly disable it, it should disable itself...

[Green-Sky]

Actually, can you run with -L to see the full cmake run? Speaking from experience, the error is likely further up.

Also, if you tried to build tomato with just nix build, then I know whats up. I have submodules, so you need to run nix build '.?submodules=1'

[TheSunCat]

nix build '.?submodules=1' does work, nice! I never knew about that flag.

The first error confirms this when building with -L:

tomato> -- Check for working CXX compiler: /nix/store/r73z9i18vbjcph7k2f3isrysxzx6sqjx-gcc-wrapper-13.2.0/bin/g++ - skipped
tomato> -- Detecting CXX compile features
tomato> -- Detecting CXX compile features - done
tomato> II TOMATO_BREAKPAD: OFF
tomato> II TOMATO_TOX_AV: ON
tomato> -- Using the multi-header code from /nix/store/i8xbp4fwlggg8mggifkq5kb68gz6lxxh-source/include/
tomato> CMake Error at external/CMakeLists.txt:7 (add_subdirectory):
tomato>   The source directory
tomato>     /build/nax43w29bja1wcljp56wjknanjgm9dyw-source/external/solanaceae_util
tomato>   does not contain a CMakeLists.txt file.

On the topic of Vulkan, I did find a way to build a package that uses it (and SDL_gpu) on Nix. Feel free to look at my code here: https://git.allpurposem.at/mat/gooey/src/branch/main/nix/packages/gooey/default.nix
However, I haven't solved not being able to capture it with RenderDoc (it fails to find libvulkan in that case).

[Green-Sky]

nix build '.?submodules=1' still fails for the new nix...
Just found out that nix build '.?submodules=1#' works NixOS/nix#6633