OS : OS X 10.8.1 QtCreator : 2.6.2
Command line is fine, but QtCreator fail to compile the codes.
#include <functional>
#include <iostream>
#include <memory>
#include <string>
#include <vector>
int main(int argc, const char * argv[])
{
std::vector<std::string> strs{"yahoo", "haha"};
for(auto const &data : strs){
std::cout<<data<<std::endl;
}
std::vector<std::string> strs2 = std::move(strs);
std::unique_ptr<int> A(new int(3));
std::cout<<*A<<std::endl;
return 0;
}
Command line :
clang++ -stdlib=libc++ -std=c++11 main.cpp -o test
Compiler setting of QtCreator http://www.flickr.com/photos/92283971@N04/8453188038/in/photostream
Qt .pro file
TEMPLATE = app
CONFIG += console
CONFIG -= app_bundle
CONFIG -= qt
SOURCES += main.cpp
QMAKE_CXXFLAGS += -std=c++11
QMAKE_CXXFLAGS += -stdlib=libc++
Error message:
clang: error: invalid deployment target for -stdlib=libc++ (requires OS X 10.7 or later) make: *** [main.o] Error 1
But my OS number is 10.8.1
TEMPLATE = app
CONFIG += console
CONFIG -= app_bundle
CONFIG -= qt
SOURCES += main.cpp
LIBS += -stdlib=libc++
QMAKE_CXXFLAGS += -stdlib=libc++
QMAKE_CXXFLAGS += -std=c++11
QMAKE_CXXFLAGS += -mmacosx-version-min=10.7
QMAKE_LFLAGS += -mmacosx-version-min=10.7
I can compile the codes by this .pro file But there are warning when you play with Qt library
ld: warning: directory not found for option ‘-F/Users/yyyy/Qt5.0.1/5.0.1/clang_64/qtbase/lib’ After some research, I find out this is a bug of Qt5 It is ok if you ignore this warning message even it is annoying
After some research, I find out that the error messages could be solved by adding a flag to the .pro file
TEMPLATE = app
CONFIG += console
CONFIG -= app_bundle
CONFIG -= qt
SOURCES += main.cpp
QMAKE_CXXFLAGS += -stdlib=libc++
QMAKE_CXXFLAGS += -std=c++11
#QMAKE_CXXFLAGS += -mmacosx-version-min=10.7 #1
QMAKE_MACOSX_DEPLOYMENT_TARGET = 10.7 #2
1 and #2 do get rid of the error message
error message clang: error: invalid deployment target for -stdlib=libc++ (requires OS X 10.7 or later) but they also generate another error message
ld: symbol(s) not found for architecture x86_64 clang: error: linker command failed with exit code 1 (use -v to see invocation)
symbol not found, but I have no idea what which .a should I link to?
This seemed to do the trick for me.
CONFIG += c++11
It correctly put -std=c++11 in the command line and I didn't get any compiler or linker errors.
Using Qt 5.2.
来源：https://stackoverflow.com/questions/14749315/clang-under-qtcreator-cant-work-with-c11