It's a linker flag, so for a target of "MyTarget" use:
set_target_properties(MyTarget PROPERTIES LINK_FLAGS "/LTCG") (I had to do this for this exact flag, so I know this should work) Hope that helps, Paul. From: CMake [mailto:[email protected]] On Behalf Of Sachin Gaikwad Sent: 08 May 2015 13:55 To: [email protected] Subject: [CMake] Cmake: VS2013: General -> Whole Program Optimization (/LTCG) Hi all, I am using: - cmake-3.0.2 - Visual Studio 2013 (Update 4) I get this log message in build logs when I build any target in my Visual Studio solution: "MSIL .netmodule or module compiled with /GL found; restarting link with /LTCG; add /LTCG to the link command line to improve linker performance" I read online on this and found this Microsoft link (https://msdn.microsoft.com/en-us/library/xbf3tbeh.aspx) which suggests that I should set "Whole Program Optimization" under "General" properties to "Use Link Time Code Generation" (/LTCG). I am not able to figure out which cmake variables I should set this in? I tried setting this flag in following variables, but it did not work. CMAKE_EXE_LINKER_FLAGS CMAKE_MODULE_LINKER_FLAGS CMAKE_SHARED_LINKER_FLAGS Thanks, Sachin
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