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glfw: system_sdk: add Windows system SDK with updated DirectX headers

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This effectively provides all you need to develop & cross compile DirectX 11/12
applications with `mach/glfw` (or just Zig in general, by copying `system_sdk.zig`
into your own project.)

Helps hexops/mach#86
Helps hexops/mach#59

Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
This commit is contained in:
Stephen Gutekanst 2022-03-04 15:38:53 -07:00
parent dc8ffa9e87
commit 6cbf0508b1
1 changed files with 26 additions and 1 deletions
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27
glfw/system_sdk.zig
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@ -48,6 +48,10 @@ pub const Options = struct {
linux_x86_64: []const u8 = "sdk-linux-x86_64",
linux_x86_64_revision: []const u8 = "ab7fa8f3a05b06e0b06f4277b484e27004bfb20f",
/// The Windows x86-64 SDK repository name.
windows_x86_64: []const u8 = "sdk-windows-x86_64",
windows_x86_64_revision: []const u8 = "5acba990efd112ea0ced364f0428e6ef6e7a5541",
/// If true, the Builder.sysroot will set to the SDK path. This has the drawback of preventing
/// you from including headers, libraries, etc. from outside the SDK generally. However, it can
/// be useful in order to identify which libraries, headers, frameworks, etc. may be missing in
@ -58,7 +62,7 @@ pub const Options = struct {
pub fn include(b: *Builder, step: *std.build.LibExeObjStep, options: Options) void {
const target = (std.zig.system.NativeTargetInfo.detect(b.allocator, step.target) catch unreachable).target;
switch (target.os.tag) {
.windows => {},
.windows => includeSdkWindowsX8664(b, step, options),
.macos => includeSdkMacOS(b, step, options),
else => includeSdkLinuxX8664(b, step, options), // Assume Linux-like for now
}
@ -113,6 +117,27 @@ fn includeSdkLinuxX8664(b: *Builder, step: *std.build.LibExeObjStep, options: Op
step.addLibPath(sdk_root_libs);
}
fn includeSdkWindowsX8664(b: *Builder, step: *std.build.LibExeObjStep, options: Options) void {
const sdk_root_dir = getSdkRoot(b.allocator, options.github_org, options.windows_x86_64, options.windows_x86_64_revision) catch unreachable;
if (options.set_sysroot) {
// We have no sysroot for Windows, but we still set one to prevent inclusion of other system
// libs (if set_sysroot is set, don't want to accidentally depend on system libs.)
var sdk_sysroot = std.fs.path.join(b.allocator, &.{sdk_root_dir}) catch unreachable;
b.sysroot = sdk_sysroot;
}
var sdk_includes = std.fs.path.join(b.allocator, &.{ sdk_root_dir, "include" }) catch unreachable;
var sdk_libs = std.fs.path.join(b.allocator, &.{ sdk_root_dir, "lib" }) catch unreachable;
defer {
b.allocator.free(sdk_includes);
b.allocator.free(sdk_libs);
}
step.addIncludeDir(sdk_includes);
step.addLibPath(sdk_libs);
}
var cached_sdk_root: ?[]const u8 = null;
/// returns the SDK root path, determining it iff necessary. In a real application, this may be