+if( IGNORE_LIBDIR ) # if set, then force to lib otherwise use "system preference"
+ set( install_lib "lib" )
+else()
+ set( install_lib "${CMAKE_INSTALL_LIBDIR}" )
+endif()
+unset(IGNORE_LIBDIR CACHE ) # we don't want this to persist
+message( "+++ RMR library install target directory: ${install_lib}" )
+