[SOLVED]Make QtCreator, QMake and clang3.2 work with c++11

stereomatching

Sorry, looks like I posted a wrong makefile
This time I'm sure the target is 10.7
"makefile":http://pastebin.com/SqG8hyPZ

.pro
@
TEMPLATE = app
CONFIG += console
CONFIG -= app_bundle
CONFIG -= qt
#CONFIG += -stdlib=libc++

SOURCES += main.cpp

#QMAKE_LFLAGS += -nodefaultlibs /usr/lib/libstdc++.dylib /usr/lib/libgcc_s.1.dylib

QMAKE_CXXFLAGS += -stdlib=libc++
QMAKE_CXXFLAGS += -std=c++11
#QMAKE_CXXFLAGS += -mmacosx-version-min=10.7
QMAKE_MACOSX_DEPLOYMENT_TARGET = 10.7

#LIBS += /usr/lib/libstdc++.dylib /usr/lib/libgcc_s.1.dylib

@

"error messages":http://pastebin.com/0RahN86i

bq. If you have to add -stdlib=libc++, that means the current Qt installation uses libstdc++, and you won’t be able to compile anything with both Qt and libc++, unless you recompile Qt.

How about Qt5?Do I need to add -stdlib=libc++ if it is Qt5?
I would upgrade my projects to Qt5 if I could skip the pain of recompile

Whatever, now the problem is how to make QtCreator could work with clang++
and c++11.Command line can make the job done but the makefile generated
by qmake can't compile.

stereomatching

I give Qt5.0.1 a try, it has a same problem too
But this is expectable since the codes have nothing
to do with Qt but QtCreator and clang++.

I install Qt5.0.1 and Qt4.8.4 on mac together
Not sure this could be a problem or not

.pro of Qt5
@
TEMPLATE = app
CONFIG += console
CONFIG -= app_bundle
CONFIG -= qt
CONFIG += c++11
#CONFIG += -stdlib=libc++

SOURCES += main.cpp

#QMAKE_LFLAGS += -nodefaultlibs /usr/lib/libstdc++.dylib /usr/lib/libgcc_s.1.dylib

QMAKE_CXXFLAGS += -stdlib=libc++
#QMAKE_CXXFLAGS += -std=c++11
QMAKE_CXXFLAGS += -mmacosx-version-min=10.7
#QMAKE_MACOSX_DEPLOYMENT_TARGET = 10.7

#LIBS += /usr/lib/libstdc++.dylib /usr/lib/libgcc_s.1.dylib
@

"makefile":http://pastebin.com/76PUzw2u

"error messages":http://pastebin.com/WTWrwm8d

stereomatching

I am thinking of using gcc4.7 to replace clang3.2
Compile with gcc come from the osx is fine with Qt4.8.4

But Qt5.0.1 would generate a warning message no matter it is
clang or gcc

ld: warning: directory not found for option '-F/Users/yyyy/Qt5.0.1/5.0.1/clang_64/qtbase/lib'

stereomatching

I download gcc4.8 by macport

//install gcc48
sudo port install gcc48

//set gcc48 as the default compiler
sudo port select --set gcc mp-gcc48

set the compiler under /opt/local/bin/g++ for Qt5.0.1

.pro file

@
TEMPLATE = app
CONFIG += console
CONFIG -= app_bundle
CONFIG -= qt

SOURCES += main.cpp

QMAKE_CXXFLAGS += -std=c++0x
@

codes
@
//
// main.cpp
// yyyy
//
// Created by yyyy on 2/6/13.
// Copyright (c) 2013 yyyy. All rights reserved.
//

#include <functional>
#include <iostream>
#include <memory>
#include <string>
#include <vector>

template<typename T>
inline void print_comma_separated_list(T value)
{
std::cout<<value<<std::endl;
}

template<typename First,typename ... Rest>
void print_comma_separated_list(First first,Rest ... rest)
{
std::cout<<first<<",";
print_comma_separated_list(rest...);
}

constexpr int multiply_two(int a)
{
return a * 2;
}

int main()
{

// insert code here...
std::cout << "Hello, World!"<<std::endl;

auto func = [](){ std::cout << "hahaha\n"; };
func();

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);
for(auto const &data : strs2){
    std::cout<<data<<std::endl;
}

std::unique_ptr<int> A(new int(3));
std::cout<<*A<<std::endl;

print_comma_separated_list(32, "444", 34.564564, "lalamimilolipo");

return 0;

}
@

without any warning or errors
but it will pop out warning if I use Qt5

ld: warning: directory not found for option ‘-F/Users/yyyy/Qt5.0.1/5.0.1/clang_64/qtbase/lib’

alexisdm

With clang, the linker doesn't get the -stdlib=libc++ option, so it was trying to link with libstdc++:
@clang++ -headerpad_max_install_names -mmacosx-version-min=10.6 -o test01 main.o @

Try adding:
@LIBS += -stdlib=libc++ -std=c++11@

I'm not sure if -std=c++11 is needed for the linker.

stereomatching

[quote author="alexisdm" date="1360328228"]With clang, the linker doesn't get the -stdlib=libc++ option, so it was trying to link with libstdc++:
@clang++ -headerpad_max_install_names -mmacosx-version-min=10.6 -o test01 main.o @

Try adding:
@LIBS += -stdlib=libc++ -std=c++11@

I'm not sure if -std=c++11 is needed for the linker.[/quote]

Thanks, the problem finally solved(half)

The .pro file
@
TEMPLATE = app
CONFIG += console
CONFIG -= app_bundle
CONFIG -= qt
#CONFIG += c++11

SOURCES += main.cpp

LIBS += -stdlib=libc++ #don't need -std=c++11

QMAKE_CXXFLAGS += -stdlib=libc++
QMAKE_CXXFLAGS += -std=c++11
QMAKE_CXXFLAGS += -mmacosx-version-min=10.7
@

Not done yet, we have to change the parameters of the makefile too

@
####### Compiler, tools and options

CC = clang
CXX = clang++
DEFINES =
CFLAGS = -pipe -mmacosx-version-min=10.7 -O2 -Wall -W -fPIE $(DEFINES)
CXXFLAGS = -pipe -mmacosx-version-min=10.7 -stdlib=libc++ -std=c++11 -mmacosx-version-min=10.7 -O2 -Wall -W -fPIE $(DEFINES)
INCPATH = -I../../../yyyy/Qt5.0.1/5.0.1/clang_64/mkspecs/macx-clang -I.
LINK = clang++
LFLAGS = -headerpad_max_install_names -mmacosx-version-min=10.7
LIBS = $(SUBLIBS) -stdlib=libc++
AR = ar cq
RANLIB = ranlib -s
QMAKE = /Users/yyyy/Qt5.0.1/5.0.1/clang_64/bin/qmake
@

change 10.6 to 10.7 since
QMAKE_CXXFLAGS += -mmacosx-version-min=10.7 or
QMAKE_MACOSX_DEPLOYMENT_TARGET = 10.7
would not change the mmacosx-version-min to 10.7

Thanks for your big helps, If I am familiar with makefile
This problem could be solved faster

But it would generate the warning message
ld: warning: directory not found for option '-F/Users/yyyy/Qt5.0.1/5.0.1/clang_64/qtbase/lib'

After I go into the path and type ls -al, I really don't have anything called /qtbase/lib

stereomatching

Do some change on .pro file

@
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
@

Don't need to alter the makefile by hand

The warning still exist, do I need to solve the warning message?
Or I could simply ignore it?

Oh man, I hope that the support of c++11 could become mature ASAP
then all of us don't need to go through so many trouble
when we want to use it.

stereomatching

According to the sites
"Qt bug":https://bugreports.qt-project.org/browse/QTBUG-28336

This warning could be ignored, let us hope that Qt5.1 will fixe this bug