build C++ cdb libraries in correct binary output directory

Author: Dominic Price

core/packages/CMakeLists.txt

@@ -57,6 +57,7 @@ foreach(PACKAGE ${COMPILED_PACKAGES})
   get_filename_component(PINSTALL ${PACKAGE} DIRECTORY)
   get_filename_component(PNAME ${PACKAGE} NAME_WE)
   pybind11_add_module(${PNAME} SHARED ${SOURCE_PACKAGEDIR}/${PACKAGE})
+  set_target_properties(${PNAME} PROPERTIES RUNTIME_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/cdb/${PINSTALL}")
   target_link_libraries(${PNAME} PUBLIC cadabra2 ${GMPXX_LIBRARIES})
   target_include_directories(${PNAME} PUBLIC ${CADABRA_CORE_DIR})
   install(TARGETS ${PNAME} DESTINATION ${PYTHON_CDB_PACKAGE_PATH}/${PINSTALL})