Apple Silicon support

[chrisballinger]

The Mapbox.xcframework here is missing a slice for arm64 iOS Simulator: https://github.com/maptiler/maplibre-gl-native/releases/download/ios-v5.10.0/Mapbox-5.10.0.zip

For whatever reason arm64 iOS Simulator is already present in MapboxMobileEvents.xcframework, just not in Mapbox.xcframework.

Although it doesn't look like you support macOS binaries yet, they'll also need arm64 slices whenever that day comes. I'd suggest just adding macOS support to the existing XCFramework.

[petr-pokorny-1]

Thank you @chrisballinger for the report. I had to exclude arm64 architecture from build architectures because I was unable to link it. I am not sure what is the root issue - it might be that I am using Intel based mac and GitHub actions runners we use for CD/CI are also Intel based. Details on the issue on StackOverflow.

If you would have more knowledge on this topic let us know or place in a pull request.

To reproduce this issue, just remove excluded architectures and build the project.

[petr-pokorny-1]

The issue seems to be caused by Mapbox dependencies dependencies which were removed in #7

[petr-pokorny-1]

@chrisballinger can I close this issue? macOS support has its own ticket.

[chrisballinger]

@petr-pokorny-1 After those changes, does the new final binary of Mapbox.xcframework now contain arm64 slices for iOS Simulator? If so, then I'd say this issue could be closed.

[petr-pokorny-1]

I believe this was fixed in the following commits:
62c6178
2f480bf
117a4c5

The framework now contains arm64 slices for iOS simulator.

The problem is that I don't have silicon mac to test it. We plan to release next version with these changes on March 05 so it would be great if someone could test it.

[chrisballinger]

Awesome! Unfortunately I don't either, perhaps one of the macOS CI providers has ARM machines now?

[roblabs]

I was able to build & test MapLibre on Apple Silicon, but the resulting test app had the following symptoms:

0. MapLibre builds on Apple Silicon
1. The Map renders, but is very slow & sluggish.
2. The log in Xcode is has multiple log entries related to 'cyclone'. Potentially a reference to the Apple A7. Thanks to @mojodna for pointing that out.
3. I'm not certain what from the log is significant, but here is a snippet.

2021-02-21 08:28:00.694678-0800 GeographyClass[59356:2652990] Failed to bind EAGLDrawable: <CAEAGLLayer: 0x600003fa42a0> to GL_RENDERBUFFER 1
2021-02-21 08:28:00.694810-0800 GeographyClass[59356:2652990] Failed to make complete framebuffer object 8cd6
'cyclone' is not a recognized processor for this target (ignoring processor)
'cyclone' is not a recognized processor for this target (ignoring processor)
# ... over 150 entries of this same log entry
'cyclone' is not a recognized processor for this target (ignoring processor)

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Build tool chain

• macOS Big Sur 11.3 Beta (20E5186d)
• MapLibre compiled with Chip: Apple A12Z Bionic
• Xcode Version 12.4 (12D4e)
• Contents from the file maplibre-gl-native/platform/ios/build/iOS/pkg/version.txt
  • https://github.com/maplibre/maplibre-gl-native/commit/62c6178029
  • Using commit 62c6178029

---

How to test:

If your Xcode project uses Swift package to import MapLibre, then delete the Mapbox & MapboxMobileEvents Libraries.

Xcode Libraries before removing the working version with MapLibre from a Swift Package

The test app has a working version with MapLibre, but is manually removed for this test.

---

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Xcode Libraries after a) removing Swift Package Libraries, and b) dragging and dropping Mapbox.xcframework built on Apple Silicon

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If your MapLibre test app uses Cocoapods on Apple Silicon, you can use these commands for any issues with installing Cocoapods

arch -x86_64 sudo gem install cocoapods
arch -x86_64 sudo gem install ffi
arch -x86_64 pod install

[roman-mykitchak]

Hi,
Apple introduced new iPad Pro featuring breakthrough M1 chip.
In such a reasons will we have a build with supported M1 architecture.
Will it work for mentioned iPad(iPadOS) as well?

Same question about Apple Silicon Mac build:
Will it be supported on "ARM-based system on the chip"?

When I am building for M1 Mac I receive next error, see attached:

[roblabs]

MapLibre runs on the simulator on Apple Silicon with the latest Xcode release & beta.

Fixed with commit 19b86f7 & see issue #14.