cmd/gomobile: add optional -macosversion build flag for macOS

Add a -macosversion build flag for macOS targets and
pass -mmacosx-version-min to clang when the flag is set.

Leave the flag unset by default so existing macOS builds keep their
current deployment target behavior and avoid backward compatibility
regressions.

Apple documents -mmacosx-version-min here:
https://developer.apple.com/library/archive/documentation/Porting/Conceptual/PortingUnix/compiling/compiling.html

Change-Id: Ifabbb22e5bcec1726df4e45c2f95830966b0d766
GitHub-Last-Rev: 677f90a0a787d0595cb304c295fe6ca503e2a204
GitHub-Pull-Request: golang/mobile#121
Reviewed-on: https://go-review.googlesource.com/c/mobile/+/784400
Reviewed-by: Hajime Hoshi <hajimehoshi@gmail.com>
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
LUCI-TryBot-Result: golang-scoped@luci-project-accounts.iam.gserviceaccount.com <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
3 files changed
tree: 2fcde58185933d5788262b544339ad86982a8401
  1. app/
  2. asset/
  3. bind/
  4. cmd/
  5. doc/
  6. event/
  7. example/
  8. exp/
  9. geom/
  10. gl/
  11. internal/
  12. testdata/
  13. .gitattributes
  14. .gitignore
  15. codereview.cfg
  16. CONTRIBUTING.md
  17. go.mod
  18. go.sum
  19. LICENSE
  20. PATENTS
  21. README.md
README.md

Go support for Mobile devices

Go Reference

The Go mobile repository holds packages and build tools for using Go on mobile platforms.

Package documentation as a starting point:

Caution image

The Go Mobile project is experimental. Use this at your own risk. While we are working hard to improve it, neither Google nor the Go team can provide end-user support.

This is early work and installing the build system requires Go 1.5. Follow the instructions on golang.org/wiki/Mobile to install the gomobile command, build the basic and the bind example apps.


Contributions to Go are appreciated. See https://go.dev/doc/contribute.

The git repository is https://go.googlesource.com/mobile.