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glfw: simplify build script, remove redundant allocs, improve -fno-stage1 support

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This commit is contained in:
Michal Ziulek 2022-08-16 02:12:53 +02:00 • committed by GitHub
parent fda9465943
commit 4296b2865b
1 changed files with 22 additions and 27 deletions
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49
build.zig
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@ -13,7 +13,7 @@ pub fn build(b: *Builder) void {
}
pub fn testStep(b: *Builder, mode: std.builtin.Mode, target: std.zig.CrossTarget) *std.build.RunStep {
const main_tests = b.addTestExe("glfw_tests", (comptime thisDir()) ++ "/src/main.zig");
const main_tests = b.addTestExe("glfw_tests", thisDir() ++ "/src/main.zig");
main_tests.setBuildMode(mode);
main_tests.setTarget(target);
link(b, main_tests, .{});
@ -22,7 +22,7 @@ pub fn testStep(b: *Builder, mode: std.builtin.Mode, target: std.zig.CrossTarget
}
fn testStepShared(b: *Builder, mode: std.builtin.Mode, target: std.zig.CrossTarget) *std.build.RunStep {
const main_tests = b.addTestExe("glfw_tests_shared", (comptime thisDir()) ++ "/src/main.zig");
const main_tests = b.addTestExe("glfw_tests_shared", thisDir() ++ "/src/main.zig");
main_tests.setBuildMode(mode);
main_tests.setTarget(target);
link(b, main_tests, .{ .shared = true });
@ -69,7 +69,7 @@ pub const pkg = std.build.Pkg{
pub fn link(b: *Builder, step: *std.build.LibExeObjStep, options: Options) void {
const lib = buildLibrary(b, step, options);
step.linkLibrary(lib);
addGLFWIncludes(b, step);
addGLFWIncludes(step);
if (!options.shared) linkGLFWDependencies(b, step, options);
if (options.shared) step.defineCMacro("GLFW_DLL", null);
}
@ -78,11 +78,11 @@ fn buildLibrary(b: *Builder, step: *std.build.LibExeObjStep, options: Options) *
// TODO(build-system): https://github.com/hexops/mach/issues/229#issuecomment-1100958939
ensureDependencySubmodule(b.allocator, "upstream") catch unreachable;
const main_abs = (comptime thisDir()) ++ "/src/main.zig";
const main_abs = thisDir() ++ "/src/main.zig";
const lib = if (options.shared) b.addSharedLibrary("glfw", main_abs, .unversioned) else b.addStaticLibrary("glfw", main_abs);
lib.setBuildMode(step.build_mode);
lib.setTarget(step.target);
addGLFWIncludes(b, lib);
addGLFWIncludes(lib);
if (options.shared) {
lib.defineCMacro("_GLFW_BUILD_DLL", null);
@ -93,28 +93,23 @@ fn buildLibrary(b: *Builder, step: *std.build.LibExeObjStep, options: Options) *
return lib;
}
fn addGLFWIncludes(b: *Builder, step: *std.build.LibExeObjStep) void {
const include_dir = std.fs.path.join(b.allocator, &.{ (comptime thisDir()), "upstream/glfw/include" }) catch unreachable;
defer b.allocator.free(include_dir);
step.addIncludeDir(include_dir);
const vulkan_include_dir = std.fs.path.join(b.allocator, &.{ (comptime thisDir()), "upstream/vulkan_headers/include" }) catch unreachable;
defer b.allocator.free(vulkan_include_dir);
step.addIncludeDir(vulkan_include_dir);
fn addGLFWIncludes(step: *std.build.LibExeObjStep) void {
step.addIncludeDir(thisDir() ++ "/upstream/glfw/include");
step.addIncludeDir(thisDir() ++ "/upstream/vulkan_headers/include");
}
fn addGLFWSources(b: *Builder, step: *std.build.LibExeObjStep, lib: *std.build.LibExeObjStep, options: Options) void {
const target = (std.zig.system.NativeTargetInfo.detect(b.allocator, step.target) catch unreachable).target;
const include_glfw_src = "-I" ++ (comptime thisDir()) ++ "/upstream/glfw/src";
const include_glfw_src = "-I" ++ thisDir() ++ "/upstream/glfw/src";
switch (target.os.tag) {
.windows => lib.addCSourceFiles(&.{
(comptime thisDir()) ++ "/src/sources_all.c",
(comptime thisDir()) ++ "/src/sources_windows.c",
thisDir() ++ "/src/sources_all.c",
thisDir() ++ "/src/sources_windows.c",
}, &.{ "-D_GLFW_WIN32", include_glfw_src }),
.macos => lib.addCSourceFiles(&.{
(comptime thisDir()) ++ "/src/sources_all.c",
(comptime thisDir()) ++ "/src/sources_macos.m",
(comptime thisDir()) ++ "/src/sources_macos.c",
thisDir() ++ "/src/sources_all.c",
thisDir() ++ "/src/sources_macos.m",
thisDir() ++ "/src/sources_macos.c",
}, &.{ "-D_GLFW_COCOA", include_glfw_src }),
else => {
// TODO(future): for now, Linux must be built with glibc, not musl:
@ -128,17 +123,17 @@ fn addGLFWSources(b: *Builder, step: *std.build.LibExeObjStep, lib: *std.build.L
var sources = std.ArrayList([]const u8).init(b.allocator);
var flags = std.ArrayList([]const u8).init(b.allocator);
sources.append((comptime thisDir()) ++ "/src/sources_all.c") catch unreachable;
sources.append((comptime thisDir()) ++ "/src/sources_linux.c") catch unreachable;
sources.append(thisDir() ++ "/src/sources_all.c") catch unreachable;
sources.append(thisDir() ++ "/src/sources_linux.c") catch unreachable;
if (options.x11) {
sources.append((comptime thisDir()) ++ "/src/sources_linux_x11.c") catch unreachable;
sources.append(thisDir() ++ "/src/sources_linux_x11.c") catch unreachable;
flags.append("-D_GLFW_X11") catch unreachable;
}
if (options.wayland) {
sources.append((comptime thisDir()) ++ "/src/sources_linux_wayland.c") catch unreachable;
sources.append(thisDir() ++ "/src/sources_linux_wayland.c") catch unreachable;
flags.append("-D_GLFW_WAYLAND") catch unreachable;
}
flags.append("-I" ++ (comptime thisDir()) ++ "/upstream/glfw/src") catch unreachable;
flags.append("-I" ++ thisDir() ++ "/upstream/glfw/src") catch unreachable;
lib.addCSourceFiles(sources.items, flags.items);
},
@ -150,15 +145,15 @@ fn ensureDependencySubmodule(allocator: std.mem.Allocator, path: []const u8) !vo
if (std.mem.eql(u8, no_ensure_submodules, "true")) return;
} else |_| {}
var child = std.ChildProcess.init(&.{ "git", "submodule", "update", "--init", path }, allocator);
child.cwd = (comptime thisDir());
child.cwd = thisDir();
child.stderr = std.io.getStdErr();
child.stdout = std.io.getStdOut();
_ = try child.spawnAndWait();
}
fn thisDir() []const u8 {
return std.fs.path.dirname(@src().file) orelse ".";
inline fn thisDir() []const u8 {
return comptime std.fs.path.dirname(@src().file) orelse ".";
}
fn linkGLFWDependencies(b: *Builder, step: *std.build.LibExeObjStep, options: Options) void {