g++ -Wl,--no-undefined -Wl,-O1 -Wl,-rpath,/usr/local/Qt-5.1.1/lib -shared -o libqoffscreen.so .obj/release-shared/main.o .obj/release-shared/qoffscreenintegration.o .obj/release-shared/qoffscreenwindow.o .obj/release-shared/qoffscreencommon.o .obj/release-shared/qoffscreenintegration_x11.o  -L/home/gour/prj/qt/qt-everywhere-opensource-src-5.1.1/qtbase/lib -lQt5PlatformSupport -lz -lQt5Gui -lQt5Core -lGL -lpthread
.obj/release-shared/qoffscreenintegration_x11.o: In function `QOffscreenX11GLXContext::~QOffscreenX11GLXContext()':
qoffscreenintegration_x11.cpp:(.text+0x7b): undefined reference to `XDestroyWindow'
.obj/release-shared/qoffscreenintegration_x11.o: In function `QOffscreenX11GLXContext::makeCurrent(QPlatformSurface*)':
qoffscreenintegration_x11.cpp:(.text+0x129): undefined reference to `XResizeWindow'
qoffscreenintegration_x11.cpp:(.text+0x140): undefined reference to `XSync'
.obj/release-shared/qoffscreenintegration_x11.o: In function `createDummyWindow(QOffscreenX11Info*, XVisualInfo*) [clone .isra.7]':
qoffscreenintegration_x11.cpp:(.text+0x1e9): undefined reference to `XCreateColormap'
qoffscreenintegration_x11.cpp:(.text+0x276): undefined reference to `XCreateWindow'
qoffscreenintegration_x11.cpp:(.text+0x287): undefined reference to `XFreeColormap'
.obj/release-shared/qoffscreenintegration_x11.o: In function `QOffscreenX11Connection::QOffscreenX11Connection()':
qoffscreenintegration_x11.cpp:(.text+0x2e1): undefined reference to `XInitThreads'
qoffscreenintegration_x11.cpp:(.text+0x2fd): undefined reference to `XOpenDisplay'
.obj/release-shared/qoffscreenintegration_x11.o: In function `QOffscreenX11Connection::~QOffscreenX11Connection()':
qoffscreenintegration_x11.cpp:(.text+0x358): undefined reference to `XCloseDisplay'
.obj/release-shared/qoffscreenintegration_x11.o: In function `QOffscreenX11GLXContext::QOffscreenX11GLXContext(QOffscreenX11Info*, QOpenGLContext*)':
qoffscreenintegration_x11.cpp:(.text+0x462): undefined reference to `qglx_findConfig(_XDisplay*, int, QSurfaceFormat const&, int)'
qoffscreenintegration_x11.cpp:(.text+0x4b8): undefined reference to `qglx_surfaceFormatFromGLXFBConfig(QSurfaceFormat*, _XDisplay*, __GLXFBConfigRec*, __GLXcontextRec*)'
qoffscreenintegration_x11.cpp:(.text+0x4f1): undefined reference to `XFree'
qoffscreenintegration_x11.cpp:(.text+0x522): undefined reference to `qglx_findVisualInfo(_XDisplay*, int, QSurfaceFormat*)'
qoffscreenintegration_x11.cpp:(.text+0x579): undefined reference to `XFree'
.obj/release-shared/qoffscreenintegration_x11.o: In function `QOffscreenX11Integration::createPlatformOpenGLContext(QOpenGLContext*) const':
qoffscreenintegration_x11.cpp:(.text+0x6fd): undefined reference to `XCloseDisplay'
.obj/release-shared/qoffscreenintegration_x11.o: In function `QOffscreenX11Integration::~QOffscreenX11Integration()':
qoffscreenintegration_x11.cpp:(.text._ZN24QOffscreenX11IntegrationD2Ev[_ZN24QOffscreenX11IntegrationD5Ev]+0x20): undefined reference to `XCloseDisplay'
.obj/release-shared/qoffscreenintegration_x11.o: In function `QOffscreenX11Integration::~QOffscreenX11Integration()':
qoffscreenintegration_x11.cpp:(.text._ZN24QOffscreenX11IntegrationD0Ev[_ZN24QOffscreenX11IntegrationD0Ev]+0x21): undefined reference to `XCloseDisplay'
collect2: error: ld returned 1 exit status
make[5]: *** [../../../../plugins/platforms/libqoffscreen.so] Error 1
make[5]: Leaving directory `/home/gour/prj/qt/qt-everywhere-opensource-src-5.1.1/qtbase/src/plugins/platforms/offscreen'
make[4]: *** [sub-offscreen-make_first] Error 2
make[4]: Leaving directory `/home/gour/prj/qt/qt-everywhere-opensource-src-5.1.1/qtbase/src/plugins/platforms'
make[3]: *** [sub-platforms-make_first] Error 2
make[3]: Leaving directory `/home/gour/prj/qt/qt-everywhere-opensource-src-5.1.1/qtbase/src/plugins'
make[2]: *** [sub-plugins-make_first] Error 2
make[2]: Leaving directory `/home/gour/prj/qt/qt-everywhere-opensource-src-5.1.1/qtbase/src'
make[1]: *** [sub-src-make_first] Error 2
make[1]: Leaving directory `/home/gour/prj/qt/qt-everywhere-opensource-src-5.1.1/qtbase'
make: *** [module-qtbase-make_first] Error 2