CMake指定目标的链接选项，有三种方案

方案一

通过target_link_options来设置，（version 3.13.以上）

add_executable(mymathApp mymathApp.cc)
target_link_options(mymathApp PRIVATE -wl,-shared,-z,noexecstack)

方案二

通过目标的属性来设置

set_target_properties(<executable_name>
    PROPERTIES
    LINK_OPTIONS "-wl,-z,-relro"
    )

或者

set_target_properties(<executable_name>
    PROPERTIES
    LINK_FLAGS "-wl,-z,-relro"
    )

方案三

set(LINK_FLAGS)

## The options for the shared library
set(LINK_FLAGS    "-rdynamic -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now")
 
## the actual options for gcc
set(CMAKE_C_FLAGS             "-fsigned-char ${COMPILE_FLAGS}")
set(CMAKE_C_FLAGS_DEBUG       "-g")
set(CMAKE_C_FLAGS_RELEASE     "-DNDEBUG")

 
## The linker options
set(CMAKE_SHARED_LINKER_FLAGS "${LINK_FLAGS}")
set(CMAKE_EXE_LINKER_FLAGS    "${LINK_FLAGS}")

参考：

CMake教程系列-04-编译相关函数 - 知乎

CMake 指定目标的链接选项_icbm的博客-CSDN博客_cmake添加链接选项

Gcc链接选项_jiang010的博客-CSDN博客_gcc 链接选项