Cannot use system SDL3

[knightpp]

It seems there's something wrong in build script with dvui setup? I cannot build with zig build -fsys=sdl3 which results in the following error.

$ zig build -fsys=sdl3
install
└─ install fizzy
   └─ compile exe fizzy Debug native
      └─ translate-c 2 errors
error: translation failure
/home/user/src/forks/fizzy/zig-pkg/dvui-0.5.0-dev-AQFJmWiB-gCtzdvo-D5qGOj-k7nNvIsFEq-nYctwzDvZ/src/backends/sdl3-c.h:29:10: error: 'SDL3/SDL.h' not found
#include "SDL3/SDL.h"
         ^
error: 2 compilation errors
failed command: /home/user/.cache/zig/p/N-V-__8AAFFSVRWqblwBIcA-Yqv-u7sbjsJoww8K0mWaHbmJ/zig translate-c -lc --cache-dir .zig-cache --global-cache-dir /home/user/.cache/zig /home/user/src/forks/fizzy/zig-pkg/dvui-0.5.0-dev-AQFJmWiB-gCtzdvo-D5qGOj-k7nNvIsFEq-nYctwzDvZ/src/backends/sdl3-c.h --listen=-

Build Summary: 40/44 steps succeeded (1 failed)
install transitive failure
└─ install fizzy transitive failure
   └─ compile exe fizzy Debug native transitive failure
      └─ translate-c 2 errors

error: the following build command failed with exit code 1:
.zig-cache/o/c999a1278854fd01c9f220be48da3318/build /home/user/.cache/zig/p/N-V-__8AAFFSVRWqblwBIcA-Yqv-u7sbjsJoww8K0mWaHbmJ/zig /home/user/.cache/zig/p/N-V-__8AAFFSVRWqblwBIcA-Yqv-u7sbjsJoww8K0mWaHbmJ/lib /home/user/src/forks/fizzy .zig-cache /home/user/.cache/zig --seed 0xa8690fa7 -Zc9264a5342a8ad69 -fsys=sdl3
fizzy

Pkg config shows sdl3 headers correctly.

$ pkg-config --cflags sdl3
-I/nix/store/snvmigqwhchfaj33vx7wq7qi9rvmvps4-sdl3-3.4.10-dev/include

[foxnne]

Thank you for the issue! I haven't actually tried building this using system SDL3, I've always used the package manager, so this hasn't been tested at all I don't think. I'll look into this and try to get things fixed up for you if I can :)