cmake: store all build artifacts in top-level bin/ and lib/ directories

CMakeLists.txt

@@ -10,6 +10,10 @@ string(TOLOWER ${b_system_name} b_system_name)
 
 message(STATUS "System name: ${b_system_name}")
 
+set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/lib)
+set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/lib)
+set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/bin)
+
 foreach (module ${b_modules})
 	add_subdirectory(${module})
 	if (EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/${module}-test)