使用qtcreator在mac下调用c++11特性

引用自：

http://stackoverflow.com/questions/10592341/cant-upgrade-gcc-on-mac

  先安装macports，然后 

sudo port install gcc47 +universal

sudo port install libstdcxx +universal

I created a custom makespec - in QtSDK/Desktop/Qt/4.8.1/gcc/mkspecs, I copied the macx-g++ folder to macx-g++47. I then removed the "include(../common/g++macx.conf)" from that and included it's contents, except for the part that generates the error (i.e. the -X... thing).

I also finished with

QMAKE_CC         = gcc-mp-4.7
QMAKE_CXX        = g++-mp-4.7

QMAKE_LINK       = $$QMAKE_CXX
QMAKE_LINK_SHLIB = $$QMAKE_CXX
QMAKE_LINK_C       = $$QMAKE_CC
QMAKE_LINK_C_SHLIB = $$QMAKE_CC

 ..which is similar to the spec for macx-g++42.

Now, if I add '-spec macx-g++47' to the qmake args, it works.

A lot of effort for something simple...would love to know a better way.