Prior to this change, an older commit of Mach or mach-glfw would use the latest
version of the native system SDKs, which would sometimes be incompatible. Better
is to ensure that we actually pin the revision we're using, so a given revision
of mach or mach-glfw is using a specific revision of the native SDKs.
Similarly, we previously had no mechanism for updating SDKs: it was either cloned,
or it wasn't. This introduces a simple `git fetch` prior to hard-resetting the SDK
to the target pinned revision - effectively giving us automatic updates for anyone
using an older revision.
Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
Prior to this the Apple SDK license agreement prompt would appear for 11.3 but
not 12.0 by accident. This fixes the issue.
Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
The latest Zig master supports specifying a specific macOS version for libc, via
the target triple (ziglang/zig#10215):
* x86_64-macos.10 (Catalina)
* x86_64-macos.11 (Big Sur)
* x86_64-macos.12 (Monterey)
* aarch64-macos.11 (Big Sur)
* aarch64-macos.12 (Monterey)
Mach's `system_sdk.zig` can now download the relevant XCode framework stubs
for Big Sur (11) and Monterey (12). Although we don't have an SDK for Catalina (10)
currently, we use the Big Sur (11) SDK in that case and it generally works fine.
By default, Zig targets the N-3 version (e.g. `x86_64-macos` defaults to `x86_64-macos.10`).
Targeting the minimum supported version is useful for compatability, it guarantees the produced
binary will run on any later macOS version. Targeting the newer version can be useful if you
wish to use newer APIs not available in previous versions.
Fixeshexops/mach#102
Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
Updates us to using the newer SDK https://github.com/hexops/sdk-macos-12.0
Also enables cross-compilation of the `mach/gpu` backend for macOS.
Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
This refactors the logic for system SDK inclusion out of the GLFW-specific `build.zig`,
and should make it very easy for anyone to copy this file and start getting cross-platform
builds of their own OpenGL/Vulkan Zig projects.
There may be some libraries we need to add for Vulkan to these SDKs, I haven't yet tested
that - but the overall idea here seems sound.
Fixeshexops/mach#39
Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
