cmake: install shared library only if it was requested $ cmake -DEVENT__LIBRARY_TYPE=static .. ... CMake Error: Error evaluating generator expression: $<TARGET_FILE_DIR:event_core_shared> No target "event_core_shared" Fixes: #853 Fixes: 669a53f3 ("cmake: set library names to be the same as with autotools") (cherry picked from commit 55d1e20e1a5dbd1188f4143968f7cafee33edc0d)