There is no CMAKE_LINKER_FLAGS variable.

There really isn't; deal with it.

Also, those are not linker flags but instead meant for the compiler.

References:

- http://www.cmake.org/cmake/help/v3.0/manual/cmake-variables.7.html

CMakeLists.txt

@@ -118,7 +118,6 @@ if(CMAKE_BUILD_TYPE MATCHES Debug)
   if(NOT ${CMAKE_CXX_COMPILER_ID} STREQUAL "MSVC")
     message(STATUS "adding profiling flags")
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fprofile-arcs -ftest-coverage -fno-inline")
-    set(CMAKE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fprofile-arcs -ftest-coverage -fno-inline")
   endif()
 endif()
 if(CMAKE_BUILD_TYPE MATCHES Release)