Luca Barbato f3140f4b25 Factor out check_for
All the os-specific code implements a `check_for` and a `detect_features`.

Move the always identical check_for in the mod.rs and use
`os::detect_features` there.
2019-09-09 22:20:10 +02:00
..
2019-07-09 01:37:07 +02:00
2019-07-09 01:37:07 +02:00
2019-09-09 22:20:10 +02:00