// build.zig
const std = @import("std");
pub fn build(b: *std.Build) void {
    const target = b.resolveTargetQuery(.{
        .cpu_arch = .thumb,
        .cpu_model = .{ .explicit = &std.Target.arm.cpu.cortex_m3 },
        .abi = .eabi,
        .os_tag = .freestanding,
        .ofmt = .elf,
    });
    const optimize = b.standardOptimizeOption(.{});
    const libc = b.createModule(.{
        .target = target,
        .optimize = optimize,
        .link_libc = false,
        .link_libcpp = false,
    });
    libc.single_threaded = true;
    libc.addCSourceFiles(.{
        .files = &[_][]const u8{
            "test.c",
        },
        .flags = &.{
            "-std=gnu99",
            "-nostdlib",
            "-nostdinc",
        },
    });

    const picolibc = b.addLibrary(.{
        .linkage = .static,
        .root_module = libc,
        .name = "c",
    });

    b.installArtifact(picolibc);
}