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9836f1b2f9
* add support for compiling Objective-C++ code Prior to this change, calling `step.addCSourceFiles` with Obj-C++ file extensions (`.mm`) would result in an error due to Zig not being aware of that extension. Clang supports an `-ObjC++` compilation mode flag, but it was only possible to use if you violated standards and renamed your `.mm` Obj-C++ files to `.m` (Obj-C) to workaround Zig being unaware of the extension. This change makes Zig aware of `.mm` files so they can be compiled, enabling compilation of projects such as [Google's Dawn WebGPU](https://dawn.googlesource.com/dawn/) using a `build.zig` file only. Helps hexops/mach#21 Signed-off-by: Stephen Gutekanst <stephen@hexops.com> * test/standalone: add ObjC++ compilation/linking test Based on the existing objc example, just tweaked for ObjC++. Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
37 lines
1.1 KiB
Zig
37 lines
1.1 KiB
Zig
const std = @import("std");
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const Builder = std.build.Builder;
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const CrossTarget = std.zig.CrossTarget;
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fn isRunnableTarget(t: CrossTarget) bool {
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// TODO I think we might be able to run this on Linux via Darling.
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// Add a check for that here, and return true if Darling is available.
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if (t.isNative() and t.getOsTag() == .macos)
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return true
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else
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return false;
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}
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pub fn build(b: *Builder) void {
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const mode = b.standardReleaseOptions();
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const target = b.standardTargetOptions(.{});
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const test_step = b.step("test", "Test the program");
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const exe = b.addExecutable("test", null);
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b.default_step.dependOn(&exe.step);
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exe.addIncludeDir(".");
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exe.addCSourceFile("Foo.mm", &[0][]const u8{});
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exe.addCSourceFile("test.mm", &[0][]const u8{});
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exe.setBuildMode(mode);
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exe.setTarget(target);
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exe.linkLibCpp();
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// TODO when we figure out how to ship framework stubs for cross-compilation,
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// populate paths to the sysroot here.
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exe.linkFramework("Foundation");
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if (isRunnableTarget(target)) {
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const run_cmd = exe.run();
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test_step.dependOn(&run_cmd.step);
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}
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}
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