The module architecture was incorrectly constructed as:
linux-x86_64-0.27
But Enlightenment expects:
linux-gnu-x86_64-0.27.1
Changes:
- Detect system ABI (gnu/musl) via features.h header check
- Use full Enlightenment version instead of just major.minor
- Correct architecture format: <system>-<abi>-<cpu>-<version>
This ensures the module installs to the correct directory that
Enlightenment will find when loading modules.
Also updated Gentoo ebuild to set S variable for correct source
directory extraction (git archives extract to 'eiwd' not 'eiwd-0.1.0').
