Fix installation location for a no-python build

Author: meshula

CMakeLists.txt

@@ -83,8 +83,8 @@ if(OTIO_PYTHON_INSTALL)
 else()
     set(OTIO_RESOLVED_PYTHON_INSTALL_DIR "${OTIO_PYTHON_INSTALL_DIR}")
     set(OTIO_RESOLVED_CXX_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}")
-    set(OTIO_RESOLVED_CXX_DYLIB_INSTALL_DIR "${OTIO_PYTHON_INSTALL_DIR}/opentimelineio")
-    message(INFO, "OTIO Python installing to ${OTIO_RESOLVED_PYTHON_INSTALL_DIR}")
+    set(OTIO_RESOLVED_CXX_DYLIB_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/lib")
+    message(INFO, "OTIO C++ installing to ${CMAKE_INSTALL_PREFIX}")
 endif()
 
 set(CMAKE_INSTALL_INCLUDEDIR "${OTIO_RESOLVED_CXX_INSTALL_DIR}/include")