clock_gettime support on OS X is a nightmare
Darwin did not support clock_gettime until Sierra, which added it. Unfortunately, the existing MACOSX_DEPLOYMENT_TARGET environment variable has no effect on its availability, so binary distributions compiled on Sierra will be incompatible with older releases.
We have three options for dealing with this,
- Disable
clock_gettimesupport in our OS X binary distributions (e.g../configure ac_cv_func_clock_gettime=no) - Produce one binary distribution for Sierra and another for previous releases
- Making it possible to change timer backends at runtime.
At the moment I'm leaning towards (1). (2) is another possibility. (3) seems like a road to madness.
Trac metadata
| Trac field | Value |
|---|---|
| Version | 8.0.1 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | high |
| Resolution | Unresolved |
| Component | Compiler |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | |
| Operating system | |
| Architecture |