build.zig

const std = @import("std");

// thanks to github.com/mattnite !!!
const libcurl = @import("src/zig-libcurl/libcurl.zig");
const mbedtls = @import("src/zig-libcurl/zig-mbedtls/mbedtls.zig");
const zlib = @import("src/zig-libcurl/zig-zlib/zlib.zig");
const libssh2 = @import("src/zig-libcurl/zig-libssh2/libssh2.zig");

pub fn build(b: *std.build.Builder) !void {
    var target = b.standardTargetOptions(.{});
    if (target.isLinux()) {
        target.abi = .musl;
    }
    const optimize = b.standardOptimizeOption(.{});

    // thanks to github.com/mattnite !!!
    const z = zlib.create(b, target, optimize);
    const tls = mbedtls.create(b, target, optimize);
    const ssh2 = libssh2.create(b, target, optimize);
    tls.link(ssh2.step);

    const curllib = try libcurl.create(b, target, optimize);
    ssh2.link(curllib.step);
    tls.link(curllib.step);
    z.link(curllib.step, .{});

    const curl = b.createModule(.{
        .source_file = .{ .path = "./src/zig-libcurl/src/main.zig" },
    });

    const exe = b.addExecutable(.{
        .name = "chat",
        // we added zig code to download models
        .root_source_file = .{ .path = "src/main.zig" },
        .target = target,
        .optimize = optimize,
    });
    exe.addModule("curl", curl);

    // now, here comes the C and C++ stuff for the actual chat client
    exe.addIncludePath(.{ .path = "src/llm" });
    exe.addCSourceFile(.{
        .file = .{ .path = "src/llm/ggml/ggml.c" },
        .flags = &.{
            "-std=c11",
            "-D_POSIX_C_SOURCE=200809L", // for clock_gettime()
            "-pthread",
        },
    });
    exe.addCSourceFiles(&.{
        "src/llm/chat.cpp",
        "src/llm/gptj.cpp",
        "src/llm/utils.cpp",
    }, &.{ "-std=c++11", "-pthread" });
    curllib.link(exe, .{});
    exe.linkLibC();
    exe.linkLibCpp();
    if (exe.target.isWindows()) {
        exe.want_lto = false;
    }
    b.installArtifact(exe);
}