编译Qt4.4.3的时候，出现如下问题：
Bootstrap QBuild: .. FAIL
In file included from ../../../qt-extended-4.4.3/qbuild/src/main.cpp:37:
../../../qt-extended-4.4.3/qbuild/src/options.h: In constructor 'Options::Options()':
../../../qt-extended-4.4.3/qbuild/src/options.h:52: error: call of overloaded 'QString(int)' is ambiguous
/usr/include/qt4/QtCore/qstring.h:428: note: candidates are: QString:String(const QByteArray&)
/usr/include/qt4/QtCore/qstring.h:426: note: QString:String(const char*)
/usr/include/qt4/QtCore/qstring.h:727: note: QString:String(const QString&)
/usr/include/qt4/QtCore/qstring.h:106: note: QString:String(QChar)
/usr/include/qt4/QtCore/qstring.h:105: note: QString:String(const QChar*)
../../../qt-extended-4.4.3/qbuild/src/main.cpp: In function 'void createProject()':
../../../qt-extended-4.4.3/qbuild/src/main.cpp:49: warning: ignoring return value of 'int chdir(const char*)', declared with attribute warn_unused_result
make[1]: *** [main.o] Error 1
make exited with value 2 at /QT4/qt-extended-4.4.3/src/build/bin/configure line 2355
make: *** [src/build/mkconf/configure] Error 1
./build: line 53: bin/qbuild: No such file or directory
./build: line 54: bin/qbuild: No such file or directory
解决办法：
网上找了很多资料都说是跟Qt Creator有关系，恰好今天刚刚装了Qt creator，果断卸掉，发现还是有问题，查了很多资料，有点晕了。突然看到一个人的办法：“必须卸掉Qt creator，然后装上g++”，试了一下，果然可以，编译的时间超久啊（虚拟机内存最好1G）~~
将g++装成和gcc的版本一样，输入#gcc -v和#g++ -v后，结果是一样的，则g++装成功。
装g++，#sudo apt-get install g++-4.6，可能还会提示什么，根据提示做就可以了。
编译成功：
