The default "0.0" version has been broken for several months/years.
MODCMAKE_USE_SHARED_LIBS:
If set to "Yes", CMake will override of shared library version using
LIBxxx_VERSION. LIBxxx_VERSION is created by the module and put in
CONFIGURE_ENV and MAKE_ENV.
If no LIBxxx_VERSION environment variable is present during configure stage
but the shared library was set a VERSION or SOVERSION by CMake, then the
shared library verison is set to 0.0.
Special case: If the CMake target shared library is given the prefix `lib'
and the `PREFIX' option is set to an empty string then the overwrite still
takes effect.
OK kn@, Bulk build by sthen@, Feedback by many; Thanks
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