libspatialindex/libspatialindex — pull request #44 by sebastic (2014-09-28 14:43:40+00:00)
Title: Fix library version and SONAME, both are defined separately.

The library version is incorrectly set as the SOVERSION.

The SOVERSION is an incrementing integer and is configured separately from
the library version.

Bump SOVERSION to 4 because of the removed symbols, as suggested in:
http://lists.gispython.org/pipermail/spatialindex/2014-September/000383.html