[Visual Studio] Add /LTCG flag via premake

[mrgoldengun]

Hello,

I have a question about flags { "LinkTimeOptimization" }
When I turned on this flag, the Visual Studio add /GL (Whole Program Optimization) and /LTCG:incremental (Link Time Code Generation). How can I config /GL and /LTCG (without incremental) via premake? AFAIK, It seems we don't have an option to do that in premake.

If I understand correctly, /LTCG is different from /LTCG:incremental
https://docs.microsoft.com/en-us/cpp/build/reference/ltcg-link-time-code-generation?view=msvc-170

[mrgoldengun]

I received a work around for this issue here.
Thank you!