remove std=gnu++11, already setting std=c++11 in my configs

[Goapher]

Re: Where "-std=gnu++11" came from?

The std=gnu++11 is getting added from clang.conf in my mkspecs folder as part of QMAKE_CXXFLAGS_GNUCXX11. What is a recommended way to remove the flag when building my projects - as I am already setting std=c++11.
The std=gnu++11 is causing precompile header issues, cribbing about trigraphs getting disabled.

Thanks.

[sierdzio]

Modify the mkspecs. Or better - copy it, change folder name and use this new name. It will be easier to move this mkspecs around when you port to different Qt versions.