在CMAKE中链接我的.so似乎不起作用.a可以

Question

cmake_minimum_required(VERSION 3.13)
project(fillit C)

set(CMAKE_C_STANDARD 99)

add_executable(fillit
        src/main.c
        src/sort_list.c
        src/reader.c
        src/validator.c
        src/solver.c)

# includes external header files
target_include_directories(fillit PRIVATE
        ${CMAKE_SOURCE_DIR}/libft/includes)

# Links libraries
target_link_libraries(fillit
        ${CMAKE_SOURCE_DIR}/libft/libft.so)

这是我的CMAKE，但是在链接静态库时，似乎工作得很好，每当我尝试链接同一库但动态链接时，就会出现以下错误。

dyld: Library not loaded: libft.so
  Referenced from: /Users/dvan-boc/Desktop/fillit/build/./fillit
  Reason: image not found