Undefined symbols for architecture x86_64 mac

[universewill]

I use "brew install g2o" to install g2o on my mac book pro.

I run cmake command,and encounters error "Undefined symbols for architecture x86_64".
How can i solve this problem?

---

Enviroment configuration in my CmakeList file is as follow:

cmake_minimum_required(VERSION 3.5)
project(Slam)

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -stdlib=libstdc++")

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -stdlib=libc++")

set( EXECUTABLE_OUTPUT_PATH ${PROJECT_SOURCE_DIR}/bin)

set( LIBRARY_OUTPUT_PATH ${PROJECT_SOURCE_DIR}/lib)

link_directories( ${PROJECT_SOURCE_DIR}/lib)

include_directories(${PROJECT_SOURCE_DIR}/include)

add_subdirectory(${PROJECT_SOURCE_DIR}/src)

[github-actions]

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