OPVERSION always requires coupling with OPSYS to be correct, but normally
I let "<" comparison violators go because it never equates to "true" on
DragonFly. This is a rare case where DragonFly needs the comparison to
be true. Add a couple of OPSYS to fix the recent breakage on DragonFly.
- Update to 1.12.2 (upstream has switched from cmake to qmake)
- Add STAGEDIR support
- Python is required only for building
- Remove custom post-install
- Use options helpers
PR: based on ports/185171
Submitted by: Max Sterling <maxclsb at gmail.com>