神马文学网编译qt及qvfb遇到的问题
来源：百度文库 编辑：神马文学网 时间：2024/04/27 17:59:41
编译qt及qvfb遇到的问题(2009-07-19 00:03:32)
标签：杂谈 分类：个人心得
1、/usr/bin/ld: cannot find -lXtst这个问题是库名称的问题，一般库后都有.so.6等数字，而qt编译时，这样的库名识别不了，解决办法是建立一个不带数字后最的库名的软连接
如这个问题：sudo ln -s /usr/lib/libXtst.so.6 /usr/lib/libXtst.so，然后ok
2、找不到XTest.h和XInput.h 要装两个包：
XTest.h－－－－libext－dev
XInput.h －－－libxi－dev
3、编译qvfb遇到的问题
一定要用qmake
转载，和他遇到的问题一样，解决方法就是参照他的
译结束后我尝试的步骤如下： (着急的直接看最后几行!!)
1.进入qvfb源码目录：
# cd /home/src/qt-x11-opensource-src-4.4.3/tools/qvfb
2.执行qmake生成pro工程:
# /home/src/qt-x11-opensource-src-4.4.3/bin/qmake -project
3.执行qmake生成Makefile
# /home/src/qt-x11-opensource-src-4.4.3/bin/qmake
4.编译make
# make
有错误：
g++ -c -pipe -g -O2 -Wall -W -D_REENTRANT -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -DQT_NO_DEBUG -DQT_GUI_LIB -DQT_CORE_LIB -DQT_SHARED -I../../mkspecs/linux-g++ -I. -I../../include/QtCore -I../../include/QtCore -I../../include/QtGui -I../../include/QtGui -I../../include -I. -I.moc/release-shared -I.uic/release-shared -o .obj/release-shared/qvfb.o qvfb.cpp
qvfb.cpp:47:24: 错误：deviceskin.h：没有那个文件或目录
qvfb.cpp: In member function ‘void QVFb::init(int, int, int, int, int, const QString&)’:
qvfb.cpp:247: 警告：检测到调用 delete 运算符时可能出现的问题：
qvfb.cpp:247: 警告：invalid use of undefined type ‘struct DeviceSkin’
qvfb.h:53: 警告：forward declaration of ‘struct DeviceSkin’
qvfb.cpp:247: 附注：析构函数和类特定的 delete 运算符均不会被调用，即使它们在类定义时已经声明。
qvfb.cpp:257: 错误：‘DeviceSkinParameters’ 在此作用域中尚未声明
qvfb.cpp:257: 错误：expected `;'' before ‘parameters’
qvfb.cpp:259: 错误：‘parameters’ 在此作用域中尚未声明
qvfb.cpp:259: 错误：‘DeviceSkinParameters’ is not a class or namespace
qvfb.cpp:260: 错误：invalid use of undefined type ‘struct DeviceSkin’
qvfb.h:53: 错误：forward declaration of ‘struct DeviceSkin’
qvfb.cpp:261: 错误：对 ‘QVFb::connect(DeviceSkin*&, const char [13], QVFb* const, const char [13])’ 的调用没有匹配的函数
../../include/QtCore/../../src/corelib/kernel/qobject.h:197: 附注：备选为： static bool QObject::connect(const QObject*, const char*, const QObject*, const char*, Qt::ConnectionType)
../../include/QtCore/../../src/corelib/kernel/qobject.h:302: 附注： bool QObject::connect(const QObject*, const char*, const char*, Qt::ConnectionType) const
qvfb.cpp:277: 错误：对 ‘QVFbX11View::QVFbX11View(int&, int&, int&, int&, QVFbAbstractView::Rotation&, DeviceSkin*&)’ 的调用没有匹配的函数
qvfbx11view.h:52: 附注：备选为： QVFbX11View::QVFbX11View(int, int, int, int, QVFbAbstractView::Rotation, QWidget*)
qvfbx11view.h:49: 附注： QVFbX11View::QVFbX11View(const QVFbX11View&)
qvfb.cpp:280: 错误：对 ‘QVFbView::QVFbView(int&, int&, int&, int&, QVFbAbstractView::Rotation&, DeviceSkin*&)’ 的调用没有匹配的函数
qvfbview.h:109: 附注：备选为： QVFbView::QVFbView(int, int, int, int, QVFbAbstractView::Rotation, QWidget*)
qvfbview.h:106: 附注： QVFbView::QVFbView(const QVFbView&)
qvfb.cpp:281: 错误：invalid use of undefined type ‘struct DeviceSkin’
qvfb.h:53: 错误：forward declaration of ‘struct DeviceSkin’
qvfb.cpp:284: 错误：对 ‘QVFb::connect(DeviceSkin*&, const char [37], QVFbAbstractView*&, const char [37])’ 的调用没有匹配的函数
../../include/QtCore/../../src/corelib/kernel/qobject.h:197: 附注：备选为： static bool QObject::connect(const QObject*, const char*, const QObject*, const char*, Qt::ConnectionType)
../../include/QtCore/../../src/corelib/kernel/qobject.h:302: 附注： bool QObject::connect(const QObject*, const char*, const char*, Qt::ConnectionType) const
qvfb.cpp:285: 错误：对 ‘QVFb::connect(DeviceSkin*&, const char [39], QVFbAbstractView*&, const char [39])’ 的调用没有匹配的函数
../../include/QtCore/../../src/corelib/kernel/qobject.h:197: 附注：备选为： static bool QObject::connect(const QObject*, const char*, const QObject*, const char*, Qt::ConnectionType)
../../include/QtCore/../../src/corelib/kernel/qobject.h:302: 附注： bool QObject::connect(const QObject*, const char*, const char*, Qt::ConnectionType) const
qvfb.cpp:287: 错误：invalid use of undefined type ‘struct DeviceSkin’
qvfb.h:53: 错误：forward declaration of ‘struct DeviceSkin’
qvfb.cpp:289: 错误：对 ‘QVFb::setCentralWidget(DeviceSkin*&)’ 的调用没有匹配的函数
../../include/QtGui/../../src/gui/widgets/qmainwindow.h:116: 附注：备选为： void QMainWindow::setCentralWidget(QWidget*)
qvfb.cpp:302: 错误：对 ‘QVFbX11View::QVFbX11View(int, int, int, int&, QVFbAbstractView::Rotation&, DeviceSkin*&)’ 的调用没有匹配的函数
qvfbx11view.h:52: 附注：备选为： QVFbX11View::QVFbX11View(int, int, int, int, QVFbAbstractView::Rotation, QWidget*)
qvfbx11view.h:49: 附注： QVFbX11View::QVFbX11View(const QVFbX11View&)
qvfb.cpp:305: 错误：对 ‘QVFbView::QVFbView(int, int, int, int&, QVFbAbstractView::Rotation&, DeviceSkin*&)’ 的调用没有匹配的函数
qvfbview.h:109: 附注：备选为： QVFbView::QVFbView(int, int, int, int, QVFbAbstractView::Rotation, QWidget*)
qvfbview.h:106: 附注： QVFbView::QVFbView(const QVFbView&)
qvfb.cpp:306: 错误：invalid use of undefined type ‘struct DeviceSkin’
qvfb.h:53: 错误：forward declaration of ‘struct DeviceSkin’
qvfb.cpp: In member function ‘void QVFb::enableCursor(bool)’:
qvfb.cpp:379: 错误：invalid use of undefined type ‘struct DeviceSkin’
qvfb.h:53: 错误：forward declaration of ‘struct DeviceSkin’
qvfb.cpp: In member function ‘void QVFb::setZoom(double)’:
qvfb.cpp:453: 错误：invalid use of undefined type ‘struct DeviceSkin’
qvfb.h:53: 错误：forward declaration of ‘struct DeviceSkin’
qvfb.cpp: In member function ‘void QVFb::skinConfigChosen(int)’:
qvfb.cpp:771: 错误：‘DeviceSkinParameters’ 在此作用域中尚未声明
qvfb.cpp:771: 错误：expected `;'' before ‘parameters’
qvfb.cpp:773: 错误：‘parameters’ 在此作用域中尚未声明
qvfb.cpp:773: 错误：‘DeviceSkinParameters’ is not a class or namespace
make: *** [.obj/release-shared/qvfb.o] 错误 1
差点就放弃了。后来仔细看了一下编译错误。估计主要是差个头文件：
qvfb.cpp:47:24: 错误：deviceskin.h：没有那个文件或目录
一般差头文件会导致cpp文件中很多数据结构和常量没有定义。找到头文件deviceskin.h在qt-x11-opensource-src-4.4.3/tools/shared/deviceskin/下面。拷贝到qvfb文件夹下。再编译：
编译没有问题，连接出错：
.obj/release-shared/qvfb.o: In function `QVFb::setZoom(double)'':
/home/src/qt-x11-opensource-src-4.4.3/tools/qvfb/qvfb.cpp:453: undefined reference to `DeviceSkin::setTransform(QMatrix const&)''
.obj/release-shared/qvfb.o: In function `QVFb::enableCursor(bool)'':
/home/src/qt-x11-opensource-src-4.4.3/tools/qvfb/qvfb.cpp:379: undefined reference to `DeviceSkin::hasCursor() const''
.obj/release-shared/qvfb.o: In function `QVFb::skinConfigChosen(int)'':
/home/src/qt-x11-opensource-src-4.4.3/tools/qvfb/qvfb.cpp:773: undefined reference to `DeviceSkinParameters::read(QString const&, DeviceSkinParameters::ReadMode, QString*)''
.obj/release-shared/qvfb.o: In function `QVFb::init(int, int, int, int, int, QString const&)'':
/home/src/qt-x11-opensource-src-4.4.3/tools/qvfb/qvfb.cpp:259: undefined reference to `DeviceSkinParameters::read(QString const&, DeviceSkinParameters::ReadMode, QString*)''
/home/src/qt-x11-opensource-src-4.4.3/tools/qvfb/qvfb.cpp:260: undefined reference to `DeviceSkin::DeviceSkin(DeviceSkinParameters const&, QWidget*)''
/home/src/qt-x11-opensource-src-4.4.3/tools/qvfb/qvfb.cpp:281: undefined reference to `DeviceSkin::setView(QWidget*)''
/home/src/qt-x11-opensource-src-4.4.3/tools/qvfb/qvfb.cpp:297: undefined reference to `DeviceSkinParameters::hasSecondaryScreen() const''
/home/src/qt-x11-opensource-src-4.4.3/tools/qvfb/qvfb.cpp:298: undefined reference to `DeviceSkinParameters::secondaryScreenSize() const''
/home/src/qt-x11-opensource-src-4.4.3/tools/qvfb/qvfb.cpp:306: undefined reference to `DeviceSkin::setSecondaryView(QWidget*)''
.obj/release-shared/x11keyfaker.o: In function `X11KeyFaker::sendKeyEvent(int, bool)'':
/home/src/qt-x11-opensource-src-4.4.3/tools/qvfb/x11keyfaker.cpp:475: undefined reference to `XTestFakeKeyEvent''
/home/src/qt-x11-opensource-src-4.4.3/tools/qvfb/x11keyfaker.cpp:459: undefined reference to `XTestFakeKeyEvent''
/home/src/qt-x11-opensource-src-4.4.3/tools/qvfb/x11keyfaker.cpp:468: undefined reference to `XTestFakeKeyEvent''
/home/src/qt-x11-opensource-src-4.4.3/tools/qvfb/x11keyfaker.cpp:454: undefined reference to `XTestFakeKeyEvent''
/home/src/qt-x11-opensource-src-4.4.3/tools/qvfb/x11keyfaker.cpp:447: undefined reference to `XTestFakeKeyEvent''
.obj/release-shared/x11keyfaker.o:/home/src/qt-x11-opensource-src-4.4.3/tools/qvfb/x11keyfaker.cpp:459: more undefined references to `XTestFakeKeyEvent'' follow
.obj/release-shared/x11keyfaker.o: In function `X11KeyFaker::connect()'':
/home/src/qt-x11-opensource-src-4.4.3/tools/qvfb/x11keyfaker.cpp:544: undefined reference to `XTestQueryExtension''
collect2: ld 返回 1
make: *** [qvfb] 错误 1
能看出来有两个方面的错误，一个是DeviceSkinParameters类的函数连接，另一个XTestFakeKeyEvent函数的问题。
我尝试的解决办法：
将qt-x11-opensource-src-4.4.3/tools/shared/deviceskin/下deviceskin.h，deviceskin.cpp都拷到qvfb文件夹下面，重新生成pro工程、Makefile文件，再执行make.
这下子DeviceSkinParameters类的函数连接的问题解决了。XTestFakeKeyEvent函数连接的问题依旧。
最后在参考http://www.linuxquestions.org/questions/programming-9/strange-header-problem-228356/
在Makefile文件中LIBS里面添加-lXtst选项。。 再次make。 OK!!
生成的qvfb正确运行。。
总结起来解决办法是：
1。复制deviceskin.h，deviceskin.cpp到qvfb文件下。
2。在qvfb文件夹下手动生成qvfb工程。
3。修改Makefile 中 LIBS 选项： 添加 -lXtst选项。
编译。。。
这里要注意，把deviceskin.h，deviceskin.cpp复制到qvfb文件下要重新生成project文件
即用qmake －project
终于搞定了
学到了不少东西，前几天学到的东西有学以致用，锻炼了下，愉快。。。
标签：杂谈 分类：个人心得
1、/usr/bin/ld: cannot find -lXtst这个问题是库名称的问题，一般库后都有.so.6等数字，而qt编译时，这样的库名识别不了，解决办法是建立一个不带数字后最的库名的软连接
如这个问题：sudo ln -s /usr/lib/libXtst.so.6 /usr/lib/libXtst.so，然后ok
2、找不到XTest.h和XInput.h 要装两个包：
XTest.h－－－－libext－dev
XInput.h －－－libxi－dev
3、编译qvfb遇到的问题
一定要用qmake
转载，和他遇到的问题一样，解决方法就是参照他的
译结束后我尝试的步骤如下： (着急的直接看最后几行!!)
1.进入qvfb源码目录：
# cd /home/src/qt-x11-opensource-src-4.4.3/tools/qvfb
2.执行qmake生成pro工程:
# /home/src/qt-x11-opensource-src-4.4.3/bin/qmake -project
3.执行qmake生成Makefile
# /home/src/qt-x11-opensource-src-4.4.3/bin/qmake
4.编译make
# make
有错误：
g++ -c -pipe -g -O2 -Wall -W -D_REENTRANT -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -DQT_NO_DEBUG -DQT_GUI_LIB -DQT_CORE_LIB -DQT_SHARED -I../../mkspecs/linux-g++ -I. -I../../include/QtCore -I../../include/QtCore -I../../include/QtGui -I../../include/QtGui -I../../include -I. -I.moc/release-shared -I.uic/release-shared -o .obj/release-shared/qvfb.o qvfb.cpp
qvfb.cpp:47:24: 错误：deviceskin.h：没有那个文件或目录
qvfb.cpp: In member function ‘void QVFb::init(int, int, int, int, int, const QString&)’:
qvfb.cpp:247: 警告：检测到调用 delete 运算符时可能出现的问题：
qvfb.cpp:247: 警告：invalid use of undefined type ‘struct DeviceSkin’
qvfb.h:53: 警告：forward declaration of ‘struct DeviceSkin’
qvfb.cpp:247: 附注：析构函数和类特定的 delete 运算符均不会被调用，即使它们在类定义时已经声明。
qvfb.cpp:257: 错误：‘DeviceSkinParameters’ 在此作用域中尚未声明
qvfb.cpp:257: 错误：expected `;'' before ‘parameters’
qvfb.cpp:259: 错误：‘parameters’ 在此作用域中尚未声明
qvfb.cpp:259: 错误：‘DeviceSkinParameters’ is not a class or namespace
qvfb.cpp:260: 错误：invalid use of undefined type ‘struct DeviceSkin’
qvfb.h:53: 错误：forward declaration of ‘struct DeviceSkin’
qvfb.cpp:261: 错误：对 ‘QVFb::connect(DeviceSkin*&, const char [13], QVFb* const, const char [13])’ 的调用没有匹配的函数
../../include/QtCore/../../src/corelib/kernel/qobject.h:197: 附注：备选为： static bool QObject::connect(const QObject*, const char*, const QObject*, const char*, Qt::ConnectionType)
../../include/QtCore/../../src/corelib/kernel/qobject.h:302: 附注： bool QObject::connect(const QObject*, const char*, const char*, Qt::ConnectionType) const
qvfb.cpp:277: 错误：对 ‘QVFbX11View::QVFbX11View(int&, int&, int&, int&, QVFbAbstractView::Rotation&, DeviceSkin*&)’ 的调用没有匹配的函数
qvfbx11view.h:52: 附注：备选为： QVFbX11View::QVFbX11View(int, int, int, int, QVFbAbstractView::Rotation, QWidget*)
qvfbx11view.h:49: 附注： QVFbX11View::QVFbX11View(const QVFbX11View&)
qvfb.cpp:280: 错误：对 ‘QVFbView::QVFbView(int&, int&, int&, int&, QVFbAbstractView::Rotation&, DeviceSkin*&)’ 的调用没有匹配的函数
qvfbview.h:109: 附注：备选为： QVFbView::QVFbView(int, int, int, int, QVFbAbstractView::Rotation, QWidget*)
qvfbview.h:106: 附注： QVFbView::QVFbView(const QVFbView&)
qvfb.cpp:281: 错误：invalid use of undefined type ‘struct DeviceSkin’
qvfb.h:53: 错误：forward declaration of ‘struct DeviceSkin’
qvfb.cpp:284: 错误：对 ‘QVFb::connect(DeviceSkin*&, const char [37], QVFbAbstractView*&, const char [37])’ 的调用没有匹配的函数
../../include/QtCore/../../src/corelib/kernel/qobject.h:197: 附注：备选为： static bool QObject::connect(const QObject*, const char*, const QObject*, const char*, Qt::ConnectionType)
../../include/QtCore/../../src/corelib/kernel/qobject.h:302: 附注： bool QObject::connect(const QObject*, const char*, const char*, Qt::ConnectionType) const
qvfb.cpp:285: 错误：对 ‘QVFb::connect(DeviceSkin*&, const char [39], QVFbAbstractView*&, const char [39])’ 的调用没有匹配的函数
../../include/QtCore/../../src/corelib/kernel/qobject.h:197: 附注：备选为： static bool QObject::connect(const QObject*, const char*, const QObject*, const char*, Qt::ConnectionType)
../../include/QtCore/../../src/corelib/kernel/qobject.h:302: 附注： bool QObject::connect(const QObject*, const char*, const char*, Qt::ConnectionType) const
qvfb.cpp:287: 错误：invalid use of undefined type ‘struct DeviceSkin’
qvfb.h:53: 错误：forward declaration of ‘struct DeviceSkin’
qvfb.cpp:289: 错误：对 ‘QVFb::setCentralWidget(DeviceSkin*&)’ 的调用没有匹配的函数
../../include/QtGui/../../src/gui/widgets/qmainwindow.h:116: 附注：备选为： void QMainWindow::setCentralWidget(QWidget*)
qvfb.cpp:302: 错误：对 ‘QVFbX11View::QVFbX11View(int, int, int, int&, QVFbAbstractView::Rotation&, DeviceSkin*&)’ 的调用没有匹配的函数
qvfbx11view.h:52: 附注：备选为： QVFbX11View::QVFbX11View(int, int, int, int, QVFbAbstractView::Rotation, QWidget*)
qvfbx11view.h:49: 附注： QVFbX11View::QVFbX11View(const QVFbX11View&)
qvfb.cpp:305: 错误：对 ‘QVFbView::QVFbView(int, int, int, int&, QVFbAbstractView::Rotation&, DeviceSkin*&)’ 的调用没有匹配的函数
qvfbview.h:109: 附注：备选为： QVFbView::QVFbView(int, int, int, int, QVFbAbstractView::Rotation, QWidget*)
qvfbview.h:106: 附注： QVFbView::QVFbView(const QVFbView&)
qvfb.cpp:306: 错误：invalid use of undefined type ‘struct DeviceSkin’
qvfb.h:53: 错误：forward declaration of ‘struct DeviceSkin’
qvfb.cpp: In member function ‘void QVFb::enableCursor(bool)’:
qvfb.cpp:379: 错误：invalid use of undefined type ‘struct DeviceSkin’
qvfb.h:53: 错误：forward declaration of ‘struct DeviceSkin’
qvfb.cpp: In member function ‘void QVFb::setZoom(double)’:
qvfb.cpp:453: 错误：invalid use of undefined type ‘struct DeviceSkin’
qvfb.h:53: 错误：forward declaration of ‘struct DeviceSkin’
qvfb.cpp: In member function ‘void QVFb::skinConfigChosen(int)’:
qvfb.cpp:771: 错误：‘DeviceSkinParameters’ 在此作用域中尚未声明
qvfb.cpp:771: 错误：expected `;'' before ‘parameters’
qvfb.cpp:773: 错误：‘parameters’ 在此作用域中尚未声明
qvfb.cpp:773: 错误：‘DeviceSkinParameters’ is not a class or namespace
make: *** [.obj/release-shared/qvfb.o] 错误 1
差点就放弃了。后来仔细看了一下编译错误。估计主要是差个头文件：
qvfb.cpp:47:24: 错误：deviceskin.h：没有那个文件或目录
一般差头文件会导致cpp文件中很多数据结构和常量没有定义。找到头文件deviceskin.h在qt-x11-opensource-src-4.4.3/tools/shared/deviceskin/下面。拷贝到qvfb文件夹下。再编译：
编译没有问题，连接出错：
.obj/release-shared/qvfb.o: In function `QVFb::setZoom(double)'':
/home/src/qt-x11-opensource-src-4.4.3/tools/qvfb/qvfb.cpp:453: undefined reference to `DeviceSkin::setTransform(QMatrix const&)''
.obj/release-shared/qvfb.o: In function `QVFb::enableCursor(bool)'':
/home/src/qt-x11-opensource-src-4.4.3/tools/qvfb/qvfb.cpp:379: undefined reference to `DeviceSkin::hasCursor() const''
.obj/release-shared/qvfb.o: In function `QVFb::skinConfigChosen(int)'':
/home/src/qt-x11-opensource-src-4.4.3/tools/qvfb/qvfb.cpp:773: undefined reference to `DeviceSkinParameters::read(QString const&, DeviceSkinParameters::ReadMode, QString*)''
.obj/release-shared/qvfb.o: In function `QVFb::init(int, int, int, int, int, QString const&)'':
/home/src/qt-x11-opensource-src-4.4.3/tools/qvfb/qvfb.cpp:259: undefined reference to `DeviceSkinParameters::read(QString const&, DeviceSkinParameters::ReadMode, QString*)''
/home/src/qt-x11-opensource-src-4.4.3/tools/qvfb/qvfb.cpp:260: undefined reference to `DeviceSkin::DeviceSkin(DeviceSkinParameters const&, QWidget*)''
/home/src/qt-x11-opensource-src-4.4.3/tools/qvfb/qvfb.cpp:281: undefined reference to `DeviceSkin::setView(QWidget*)''
/home/src/qt-x11-opensource-src-4.4.3/tools/qvfb/qvfb.cpp:297: undefined reference to `DeviceSkinParameters::hasSecondaryScreen() const''
/home/src/qt-x11-opensource-src-4.4.3/tools/qvfb/qvfb.cpp:298: undefined reference to `DeviceSkinParameters::secondaryScreenSize() const''
/home/src/qt-x11-opensource-src-4.4.3/tools/qvfb/qvfb.cpp:306: undefined reference to `DeviceSkin::setSecondaryView(QWidget*)''
.obj/release-shared/x11keyfaker.o: In function `X11KeyFaker::sendKeyEvent(int, bool)'':
/home/src/qt-x11-opensource-src-4.4.3/tools/qvfb/x11keyfaker.cpp:475: undefined reference to `XTestFakeKeyEvent''
/home/src/qt-x11-opensource-src-4.4.3/tools/qvfb/x11keyfaker.cpp:459: undefined reference to `XTestFakeKeyEvent''
/home/src/qt-x11-opensource-src-4.4.3/tools/qvfb/x11keyfaker.cpp:468: undefined reference to `XTestFakeKeyEvent''
/home/src/qt-x11-opensource-src-4.4.3/tools/qvfb/x11keyfaker.cpp:454: undefined reference to `XTestFakeKeyEvent''
/home/src/qt-x11-opensource-src-4.4.3/tools/qvfb/x11keyfaker.cpp:447: undefined reference to `XTestFakeKeyEvent''
.obj/release-shared/x11keyfaker.o:/home/src/qt-x11-opensource-src-4.4.3/tools/qvfb/x11keyfaker.cpp:459: more undefined references to `XTestFakeKeyEvent'' follow
.obj/release-shared/x11keyfaker.o: In function `X11KeyFaker::connect()'':
/home/src/qt-x11-opensource-src-4.4.3/tools/qvfb/x11keyfaker.cpp:544: undefined reference to `XTestQueryExtension''
collect2: ld 返回 1
make: *** [qvfb] 错误 1
能看出来有两个方面的错误，一个是DeviceSkinParameters类的函数连接，另一个XTestFakeKeyEvent函数的问题。
我尝试的解决办法：
将qt-x11-opensource-src-4.4.3/tools/shared/deviceskin/下deviceskin.h，deviceskin.cpp都拷到qvfb文件夹下面，重新生成pro工程、Makefile文件，再执行make.
这下子DeviceSkinParameters类的函数连接的问题解决了。XTestFakeKeyEvent函数连接的问题依旧。
最后在参考http://www.linuxquestions.org/questions/programming-9/strange-header-problem-228356/
在Makefile文件中LIBS里面添加-lXtst选项。。 再次make。 OK!!
生成的qvfb正确运行。。
总结起来解决办法是：
1。复制deviceskin.h，deviceskin.cpp到qvfb文件下。
2。在qvfb文件夹下手动生成qvfb工程。
3。修改Makefile 中 LIBS 选项： 添加 -lXtst选项。
编译。。。
这里要注意，把deviceskin.h，deviceskin.cpp复制到qvfb文件下要重新生成project文件
即用qmake －project
终于搞定了
学到了不少东西，前几天学到的东西有学以致用，锻炼了下，愉快。。。
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