Enable command line overrides of default settings
* CPACK_GENERATOR
* CPACK_PACKAGE_RELOCATABLE
Enables command line setting of generated RPM version attributes
* CPACK_RPM_PACKAGE_RELEASE
* CPACK_RPM_PACKAGE_ARCHITECTURE
Adds dependency on pkgconfig RPM when not generating relocatable RPM
Sets the following when querying the generated RPM's info:
Group : System Environment/Libraries
License : MIT
URL : https://github.com/gabime/spdlog
Summary : Fast C++ logging library
Description :
Very fast, header-only/compiled, C++ logging library.