Solve -rdynamic flag for RelWithDebInfo compile type.

Author: viferga

cmake/CompileOptions.cmake

@@ -205,7 +205,7 @@ if (PROJECT_OS_FAMILY MATCHES "unix")
 	# Debug symbols
 	if(CMAKE_BUILD_TYPE STREQUAL "Debug" OR CMAKE_BUILD_TYPE STREQUAL "RelWithDebInfo")
 		add_compile_options(-g)
-		add_link_options(-rdynamic)
+		set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -rdynamic")
 	endif()
 
 	# Optimizations