v2.0.1-rc (#13)

Reviewed-on: #13

cmake/settings.cmake

@@ -8,7 +8,7 @@ else()
 endif()
 
 set(CMAKE_COLOR_MAKEFILE OFF)
-set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD 20)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 set(THREADS_PREFER_PTHREAD_FLAG ON)
@@ -32,3 +32,8 @@ set(REPERTORY_OUTPUT_DIR ${CMAKE_BINARY_DIR})
 
 set(EXTERNAL_BUILD_ROOT ${CMAKE_BINARY_DIR}/external)
 set(EXTERNAL_BUILD_TYPE ${CMAKE_BUILD_TYPE})
+
+if (UNIX OR MINGW)
+  file(MAKE_DIRECTORY ${EXTERNAL_BUILD_ROOT}/lib)
+  file(CREATE_LINK ${EXTERNAL_BUILD_ROOT}/lib ${EXTERNAL_BUILD_ROOT}/lib64 SYMBOLIC)
+endif()