cpp/versions.cmake (4 lines of code) (raw):
set(PN_LIB_CPP_MAJOR_VERSION 12)
set(PN_LIB_CPP_MINOR_VERSION 13)
set(PN_LIB_CPP_PATCH_VERSION 1)
set(PN_LIB_CPP_VERSION "${PN_LIB_CPP_MAJOR_VERSION}.${PN_LIB_CPP_MINOR_VERSION}.${PN_LIB_CPP_PATCH_VERSION}")