How to enable custom gcc parameters in Qt Creator? [duplicate]

This question already has answers here: Configuring the GCC compiler swi开发者_C百科tches in Qt, QtCreator, and QMake (3 answers) Closed 9 years ago.

I needed to pass in "-std=c++0x" for g++ , in Qt Creator. I placed a variable in Build Environment:

But i still receive the warning:

warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x

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You need to add QMAKE_CXXFLAGS += -std=c++0x to your .pro file.