[CMake] Add -lrt at the end of link.txt

[Cedric Doucet]

He llo, 

I would like to know how to add "-lrt" at the end of link.txt. 
I tried to do that by modifying CMakeLists.txt. 
I added the following lines: 
---------------------------------------------------------------------------------------------------------------- 
list(APPEND CMAKE_CXX_FLAGS "-lrt") 
list(REMOVE_DUPLICATES CMAKE_CXX_FLAGS) 
string(REPLACE ";" " " CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}") 
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}") 
---------------------------------------------------------------------------------------------------------------- 
However, it does not work. 

Anybody have an idea? 

Thank you! 

Cédric Doucet 

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