const std = @import("std"); const vkgen = @import("vulkan-zig"); pub fn build(b: *std.Build) !void { const target = b.standardTargetOptions(.{}); const optimize = b.standardOptimizeOption(.{}); const imgui_dep = b.dependency("imgui", .{}); const cimgui_dep = b.dependency("cimgui", .{}); const luajit = try b.findProgram(&.{"luajit"}, &.{}); const gen = b.addSystemCommand(&.{luajit}); gen.setCwd(cimgui_dep.path("generator/")); gen.addFileArg(cimgui_dep.path("generator/generator.lua")); gen.addArgs(&.{ "zig cc", "comments internal noimstrv", "glfw", "vulkan", }); _ = gen.captureStdOut(); // to quiet output { const relpath = try std.fs.path.relative( b.allocator, cimgui_dep.path("generator").getPath(b), imgui_dep.path("").getPath(b), ); defer b.allocator.free(relpath); gen.setEnvironmentVariable( "IMGUI_PATH", relpath, ); } const copy = b.addWriteFiles(); copy.step.dependOn(&gen.step); _ = copy.addCopyDirectory(imgui_dep.path(""), "imgui", .{ .include_extensions = &.{ ".h", ".cpp" }, }); _ = copy.addCopyFile(cimgui_dep.path("cimgui.h"), "cimgui.h"); _ = copy.addCopyFile(cimgui_dep.path("cimgui.cpp"), "cimgui.cpp"); _ = copy.addCopyFile(cimgui_dep.path("generator/output/cimgui_impl.h"), "cimgui_impl.h"); const cimgui = b.addStaticLibrary(.{ .name = "cimgui", .target = target, .optimize = optimize, }); cimgui.step.dependOn(©.step); cimgui.linkLibC(); cimgui.linkLibCpp(); cimgui.addIncludePath(copy.getDirectory()); cimgui.addIncludePath(copy.getDirectory().path(b, "imgui")); cimgui.addCSourceFiles(.{ .root = copy.getDirectory(), .files = &.{ "cimgui.cpp", "imgui/imgui.cpp", "imgui/imgui_tables.cpp", "imgui/imgui_widgets.cpp", "imgui/imgui_demo.cpp", "imgui/imgui_draw.cpp", "imgui/backends/imgui_impl_glfw.cpp", "imgui/backends/imgui_impl_vulkan.cpp", }, .flags = &.{ "-DIMGUI_IMPL_VULKAN_NO_PROTOTYPES", "-DCIMGUI_USE_GLFW", "-DCIMGUI_USE_VULKAN", "-DIMGUI_IMPL_API=extern \"C\"", }, }); cimgui.installHeader(copy.getDirectory().path(b, "cimgui.h"), "cimgui.h"); cimgui.installHeader(copy.getDirectory().path(b, "cimgui_impl.h"), "cimgui_impl.h"); cimgui.linkSystemLibrary2("glfw3", .{ .needed = true, .preferred_link_mode = .static, .use_pkg_config = .force, }); b.installArtifact(cimgui); const cimgui_mod = b.addModule("cimgui", .{ .target = target, .optimize = optimize, .root_source_file = b.path("src/root.zig"), }); cimgui_mod.linkLibrary(cimgui); }