invalid use of unsafe.Pointer

[Wessie]

The following code https://github.com/go-gl/gl/blob/master/v3.3-core/gl/conversions.go#L42-47 is invalid because it puts a non-pointer value into a pointer-type, if the GC finds this non-pointer it will crash the program, as can be demonstrated by forcing a GC run while the return value is live https://play.golang.org/p/XslLV2Vpqk

[dmitshur]

I think this is somewhat related to go-gl/glow#11, but possibly an easier problem to fix.

Thanks for the reproducible sample code.

[Wessie]

taking a look through the glow issue list, this is actually the same as this old issue mentioned there go-gl/glfw#78, I probably should've filed it under the glow repository instead.