app: support C compiler that defaults to -fno-common

For the Android NDK, between r21 and r22 the NDK compiler switched the
default from "-fcommon" to "-fno-common", which causes duplicate
definitions when building the examples given the current C code. To
fix things, rework the C code to insure that we have a single
definition and an "extern" reference to the objects in question.

Updates golang/go#44121.

Change-Id: If198d5cfd977a7cfd1a37652d3a1916d8c8dbcb7
Reviewed-on: https://go-review.googlesource.com/c/mobile/+/290031
Run-TryBot: Than McIntosh <thanm@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
Trust: Than McIntosh <thanm@google.com>
1 file changed
tree: 34f8ba90ba03ea7f8f45967539532fb7c0f847f5
  1. .gitattributes
  2. .gitignore
  3. AUTHORS
  4. CONTRIBUTING.md
  5. CONTRIBUTORS
  6. LICENSE
  7. PATENTS
  8. README.md
  9. app/
  10. asset/
  11. bind/
  12. cmd/
  13. codereview.cfg
  14. doc/
  15. event/
  16. example/
  17. exp/
  18. geom/
  19. gl/
  20. go.mod
  21. go.sum
  22. internal/
  23. testdata/
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://golang.org/doc/contribute.html.