Allow building raylib directly into zig binaries
Instead of returning a compile step for a static library from `addRaylib`, we make it add the required C source files and their compilation flags onto an existing compile step. This lets us add raylib directly to any zig project by just calling `addRaylib(b, exe)` on our zig compilations within other build files. I've also defined the `-DPLATFORM_DESKTOP` flag only for the C compilation units directly related to raylib, so if we're compiling into another zig project that includes other C source files, they don't see any raylib-related flags.
This commit is contained in:
dantecatalfamo
parent
5e1a81555c
commit
24bed7162f
138
src/build.zig
138
src/build.zig
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@ -1,7 +1,7 @@
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const std = @import("std");
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const std = @import("std");
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// This has been tested to work with zig master branch as of commit 87de821 or May 14 2023
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// This has been tested to work with zig master branch as of commit 87de821 or May 14 2023
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pub fn addRaylib(b: *std.Build, target: std.zig.CrossTarget, optimize: std.builtin.OptimizeMode, options: Options) *std.Build.CompileStep {
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pub fn addRaylib(b: *std.Build, compile: *std.Build.Step.Compile , options: Options) void {
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const raylib_flags = &[_][]const u8{
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const raylib_flags = &[_][]const u8{
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"-std=gnu99",
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"-std=gnu99",
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"-D_GNU_SOURCE",
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"-D_GNU_SOURCE",
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@ -9,16 +9,11 @@ pub fn addRaylib(b: *std.Build, target: std.zig.CrossTarget, optimize: std.built
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"-fno-sanitize=undefined", // https://github.com/raysan5/raylib/issues/1891
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"-fno-sanitize=undefined", // https://github.com/raysan5/raylib/issues/1891
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};
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};
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const raylib = b.addStaticLibrary(.{
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compile.linkLibC();
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.name = "raylib",
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.target = target,
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.optimize = optimize,
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});
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raylib.linkLibC();
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raylib.addIncludePath(srcdir ++ "/external/glfw/include");
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compile.addIncludePath(srcdir ++ "/external/glfw/include");
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raylib.addCSourceFiles(&.{
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const c_source = &[_][]const u8{
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srcdir ++ "/raudio.c",
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srcdir ++ "/raudio.c",
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srcdir ++ "/rcore.c",
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srcdir ++ "/rcore.c",
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srcdir ++ "/rmodels.c",
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srcdir ++ "/rmodels.c",
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@ -26,74 +21,85 @@ pub fn addRaylib(b: *std.Build, target: std.zig.CrossTarget, optimize: std.built
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srcdir ++ "/rtext.c",
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srcdir ++ "/rtext.c",
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srcdir ++ "/rtextures.c",
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srcdir ++ "/rtextures.c",
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srcdir ++ "/utils.c",
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srcdir ++ "/utils.c",
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}, raylib_flags);
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};
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const rglfw = &[_][]const u8 {
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srcdir ++ "/rglfw.c",
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};
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var gen_step = std.build.Step.WriteFile.create(b);
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var gen_step = std.build.Step.WriteFile.create(b);
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raylib.step.dependOn(&gen_step.step);
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compile.step.dependOn(&gen_step.step);
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if (options.raygui) {
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if (options.raygui) {
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_ = gen_step.add(srcdir ++ "/raygui.c", "#define RAYGUI_IMPLEMENTATION\n#include \"raygui.h\"\n");
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_ = gen_step.add(srcdir ++ "/raygui.c", "#define RAYGUI_IMPLEMENTATION\n#include \"raygui.h\"\n");
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raylib.addCSourceFile(srcdir ++ "/raygui.c", raylib_flags);
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compile.addCSourceFile(srcdir ++ "/raygui.c", raylib_flags);
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raylib.addIncludePath(srcdir);
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compile.addIncludePath(srcdir);
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raylib.addIncludePath(srcdir ++ "/../../raygui/src");
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compile.addIncludePath(srcdir ++ "/../../raygui/src");
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}
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}
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switch (target.getOsTag()) {
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switch (compile.target.getOsTag()) {
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.windows => {
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.windows => {
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raylib.addCSourceFiles(&.{srcdir ++ "/rglfw.c"}, raylib_flags);
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compile.linkSystemLibrary("winmm");
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raylib.linkSystemLibrary("winmm");
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compile.linkSystemLibrary("gdi32");
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raylib.linkSystemLibrary("gdi32");
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compile.linkSystemLibrary("opengl32");
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raylib.linkSystemLibrary("opengl32");
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compile.addIncludePath("external/glfw/deps/mingw");
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raylib.addIncludePath("external/glfw/deps/mingw");
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compile.addCSourceFiles(
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c_source ++ rglfw,
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raylib.defineCMacro("PLATFORM_DESKTOP", null);
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raylib_flags ++ &[_][]const u8{ "-DPLATFORM_DESKTOP" }
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);
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},
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},
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.linux => {
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.linux => {
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raylib.addCSourceFiles(&.{srcdir ++ "/rglfw.c"}, raylib_flags);
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compile.linkSystemLibrary("GL");
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raylib.linkSystemLibrary("GL");
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compile.linkSystemLibrary("rt");
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raylib.linkSystemLibrary("rt");
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compile.linkSystemLibrary("dl");
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raylib.linkSystemLibrary("dl");
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compile.linkSystemLibrary("m");
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raylib.linkSystemLibrary("m");
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compile.linkSystemLibrary("X11");
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raylib.linkSystemLibrary("X11");
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compile.addIncludePath("/usr/include");
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raylib.addIncludePath("/usr/include");
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compile.addCSourceFiles(
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c_source ++ rglfw,
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raylib.defineCMacro("PLATFORM_DESKTOP", null);
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raylib_flags ++ &[_][]const u8{ "-DPLATFORM_DESKTOP" }
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);
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},
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},
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.freebsd, .openbsd, .netbsd, .dragonfly => {
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.freebsd, .openbsd, .netbsd, .dragonfly => {
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raylib.addCSourceFiles(&.{srcdir ++ "/rglfw.c"}, raylib_flags);
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compile.linkSystemLibrary("GL");
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raylib.linkSystemLibrary("GL");
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compile.linkSystemLibrary("rt");
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raylib.linkSystemLibrary("rt");
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compile.linkSystemLibrary("dl");
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raylib.linkSystemLibrary("dl");
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compile.linkSystemLibrary("m");
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raylib.linkSystemLibrary("m");
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compile.linkSystemLibrary("X11");
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raylib.linkSystemLibrary("X11");
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compile.linkSystemLibrary("Xrandr");
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raylib.linkSystemLibrary("Xrandr");
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compile.linkSystemLibrary("Xinerama");
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raylib.linkSystemLibrary("Xinerama");
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compile.linkSystemLibrary("Xi");
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raylib.linkSystemLibrary("Xi");
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compile.linkSystemLibrary("Xxf86vm");
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raylib.linkSystemLibrary("Xxf86vm");
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compile.linkSystemLibrary("Xcursor");
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raylib.linkSystemLibrary("Xcursor");
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compile.addCSourceFiles(
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c_source ++ rglfw,
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raylib.defineCMacro("PLATFORM_DESKTOP", null);
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raylib_flags ++ &[_][]const u8{ "-DPLATFORM_DESKTOP" }
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);
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},
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},
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.macos => {
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.macos => {
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compile.linkFramework("Foundation");
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compile.linkFramework("CoreServices");
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compile.linkFramework("CoreGraphics");
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compile.linkFramework("AppKit");
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compile.linkFramework("IOKit");
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// On macos rglfw.c include Objective-C files.
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// On macos rglfw.c include Objective-C files.
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const raylib_flags_extra_macos = &[_][]const u8{
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const raylib_flags_extra_macos = &[_][]const u8{
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"-ObjC",
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"-ObjC",
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};
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};
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raylib.addCSourceFiles(
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compile.addCSourceFiles(
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&.{srcdir ++ "/rglfw.c"},
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rglfw,
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raylib_flags ++ raylib_flags_extra_macos,
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raylib_flags ++ raylib_flags_extra_macos,
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);
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);
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raylib.linkFramework("Foundation");
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compile.addCSourceFiles(
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raylib.linkFramework("CoreServices");
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c_source,
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raylib.linkFramework("CoreGraphics");
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raylib_flags ++ &[_][]const u8{ "-DPLATFORM_DESKTOP" }
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raylib.linkFramework("AppKit");
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);
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raylib.linkFramework("IOKit");
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raylib.defineCMacro("PLATFORM_DESKTOP", null);
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},
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},
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.emscripten => {
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.emscripten => {
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raylib.defineCMacro("PLATFORM_WEB", null);
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compile.addCSourceFiles(
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raylib.defineCMacro("GRAPHICS_API_OPENGL_ES2", null);
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c_source,
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raylib_flags ++ &[_][]const u8{ "PLATFORM_WEB", "GRAPHICS_API_OPENGL_ES2" }
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);
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if (b.sysroot == null) {
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if (b.sysroot == null) {
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@panic("Pass '--sysroot \"$EMSDK/upstream/emscripten\"'");
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@panic("Pass '--sysroot \"$EMSDK/upstream/emscripten\"'");
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@ -105,14 +111,12 @@ pub fn addRaylib(b: *std.Build, target: std.zig.CrossTarget, optimize: std.built
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var dir = std.fs.openDirAbsolute(cache_include, std.fs.Dir.OpenDirOptions{ .access_sub_paths = true, .no_follow = true }) catch @panic("No emscripten cache. Generate it!");
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var dir = std.fs.openDirAbsolute(cache_include, std.fs.Dir.OpenDirOptions{ .access_sub_paths = true, .no_follow = true }) catch @panic("No emscripten cache. Generate it!");
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dir.close();
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dir.close();
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raylib.addIncludePath(cache_include);
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compile.addIncludePath(cache_include);
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},
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},
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else => {
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else => {
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@panic("Unsupported OS");
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@panic("Unsupported OS");
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},
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},
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}
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}
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return raylib;
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}
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}
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const Options = struct {
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const Options = struct {
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@ -132,19 +136,25 @@ pub fn build(b: *std.Build) void {
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const raygui = b.option(bool, "raygui", "Compile with raygui support");
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const raygui = b.option(bool, "raygui", "Compile with raygui support");
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const lib = addRaylib(b, target, optimize, .{
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const raylib = b.addStaticLibrary(.{
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.name = "raylib",
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.target = target,
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.optimize = optimize,
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});
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addRaylib(b, raylib, .{
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.raygui = raygui orelse false,
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.raygui = raygui orelse false,
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});
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});
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lib.installHeader("src/raylib.h", "raylib.h");
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raylib.installHeader("src/raylib.h", "raylib.h");
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lib.installHeader("src/raymath.h", "raymath.h");
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raylib.installHeader("src/raymath.h", "raymath.h");
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lib.installHeader("src/rlgl.h", "rlgl.h");
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raylib.installHeader("src/rlgl.h", "rlgl.h");
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if (raygui orelse false) {
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if (raygui orelse false) {
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lib.installHeader("../raygui/src/raygui.h", "raygui.h");
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raylib.installHeader("../raygui/src/raygui.h", "raygui.h");
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}
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}
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b.installArtifact(lib);
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b.installArtifact(raylib);
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}
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}
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const srcdir = struct {
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const srcdir = struct {
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