build.zig

const std = @import("std");

pub fn build(b: *std.Build) void {
    const target = b.standardTargetOptions(.{});
    const optimize = b.standardOptimizeOption(.{});

    const exe = b.addExecutable(.{
        .name = "podpad",

        .root_source_file = .{ .path = "src/main.zig" },
        .target = target,
        .optimize = optimize,
    });
    linkGraphicsDeps(exe, b);
    b.installArtifact(exe);

    const run_cmd = b.addRunArtifact(exe);
    run_cmd.step.dependOn(b.getInstallStep());
    if (b.args) |args| {
        run_cmd.addArgs(args);
    }

    const run_step = b.step("run", "Run the app");
    run_step.dependOn(&run_cmd.step);

    const unit_tests = b.addTest(.{
        .root_source_file = .{ .path = "src/main.zig" },
        .target = target,
        .optimize = optimize,
    });

    const run_unit_tests = b.addRunArtifact(unit_tests);

    const test_step = b.step("test", "Run unit tests");
    test_step.dependOn(&run_unit_tests.step);
}

// This is stolen from DVUI, not sure how much of it is necessary
// https://github.com/david-vanderson/dvui/blob/master/build.zig#L112
fn linkGraphicsDeps(exe: *std.Build.Step.Compile, b: *std.Build) void {
    // Link against the FreeType library.
    const freetype_dep = b.dependency("freetype", .{
        .target = exe.target,
        .optimize = exe.optimize,
    });
    exe.linkLibrary(freetype_dep.artifact("freetype"));

    // Link against the C standard library.
    exe.linkLibC();

    if (exe.target.isWindows()) {
        const sdl_dep = b.dependency("sdl", .{
            .target = exe.target,
            .optimize = exe.optimize,
        });
        exe.linkLibrary(sdl_dep.artifact("SDL2"));

        exe.linkSystemLibrary("setupapi");
        exe.linkSystemLibrary("winmm");
        exe.linkSystemLibrary("gdi32");
        exe.linkSystemLibrary("imm32");
        exe.linkSystemLibrary("version");
        exe.linkSystemLibrary("oleaut32");
        exe.linkSystemLibrary("ole32");
    } else {
        if (exe.target.isDarwin()) {
            exe.linkSystemLibrary("z");
            exe.linkSystemLibrary("bz2");
            exe.linkSystemLibrary("iconv");
            exe.linkFramework("AppKit");
            exe.linkFramework("AudioToolbox");
            exe.linkFramework("Carbon");
            exe.linkFramework("Cocoa");
            exe.linkFramework("CoreAudio");
            exe.linkFramework("CoreFoundation");
            exe.linkFramework("CoreGraphics");
            exe.linkFramework("CoreHaptics");
            exe.linkFramework("CoreVideo");
            exe.linkFramework("ForceFeedback");
            exe.linkFramework("GameController");
            exe.linkFramework("IOKit");
            exe.linkFramework("Metal");
        }

        exe.linkSystemLibrary("SDL2");
    }
}