- version.h is now static (should increase on new releases)
- if compiler flag is passed, will try to use version_auto.h (autogen)
(auto only on compiler flag to avoid include'ing a non-existant file)
- avoid clobbered version.h as may force recompiles
Needed to change how version.h was included to let it pick up the one from CMake's build location.
NOTE: Does not build with MinGW-w64 currently, does not have a way to build the audacious or XMPlay plugins.