使用Dlib编程出现X11相关错误

文章作者：Tyan
博客：noahsnail.com  |  CSDN  |  简书

在使用dlib库编写GUI程序时，链接时出现下面的错误，解决方案为：1. 命令行链接时添加-L/opt/X11/lib -lX11即可；2. IDE下编写C++程序，需要在Library search path(-L)中添加/opt/X11/lib，在Libraries(-l)中添加X11，重新编译链接即可。

Undefined symbols for architecture x86_64:  "_XAllocColor", referenced from:      void nativefont::font_renderer::font_renderer::vals_internal::create<unsigned int>(unsigned int*, int, bool, bool, bool, nativefont::font_renderer::font_renderer::rgb_type, nativefont::font_renderer::font_renderer::rgb_type) in libdlib.a(fonts.o)  "_XAllocSizeHints", referenced from:      dlib::gui_core_kernel_2_globals::event_handler_thread::event_handler() in libdlib.a(gui_core_kernel_2.o)      dlib::base_window::base_window(bool, bool) in libdlib.a(gui_core_kernel_2.o)      dlib::base_window::set_size(int, int) in libdlib.a(gui_core_kernel_2.o)  "_XChangeProperty", referenced from:      dlib::gui_core_kernel_2_globals::event_handler_thread::event_handler() in libdlib.a(gui_core_kernel_2.o)  "_XCheckIfEvent", referenced from:      dlib::gui_core_kernel_2_globals::event_handler_thread::event_handler() in libdlib.a(gui_core_kernel_2.o)  "_XClearArea", referenced from:      dlib::base_window::invalidate_rectangle(dlib::rectangle const&) in libdlib.a(gui_core_kernel_2.o)  "_XCloseDisplay", referenced from:      dlib::gui_core_kernel_2_globals::event_handler_thread::~event_handler_thread() in libdlib.a(gui_core_kernel_2.o)      nativefont::font_renderer::font_renderer::vals_internal::~vals_internal() in libdlib.a(fonts.o)  "_XCloseIM", referenced from:      dlib::gui_core_kernel_2_globals::event_handler_thread::~event_handler_thread() in libdlib.a(gui_core_kernel_2.o)  "_XConvertSelection", referenced from:      dlib::get_from_clipboard(std::__1::basic_string<wchar_t, std::__1::char_traits<wchar_t>, std::__1::allocator<wchar_t> >&) in libdlib.a(gui_core_kernel_2.o)  "_XCreateFontSet", referenced from:      dlib::base_window::base_window(bool, bool) in libdlib.a(gui_core_kernel_2.o)      void nativefont::font_renderer::font_renderer::vals_internal::create<unsigned int>(unsigned int*, int, bool, bool, bool, nativefont::font_renderer::font_renderer::rgb_type, nativefont::font_renderer::font_renderer::rgb_type) in libdlib.a(fonts.o)  "_XCreateGC", referenced from:      dlib::gui_core_kernel_2_globals::event_handler_thread::event_handler() in libdlib.a(gui_core_kernel_2.o)      void nativefont::font_renderer::font_renderer::vals_internal::create<unsigned int>(unsigned int*, int, bool, bool, bool, nativefont::font_renderer::font_renderer::rgb_type, nativefont::font_renderer::font_renderer::rgb_type) in libdlib.a(fonts.o)  "_XCreateIC", referenced from:      dlib::base_window::base_window(bool, bool) in libdlib.a(gui_core_kernel_2.o)  "_XCreatePixmap", referenced from:      void nativefont::font_renderer::font_renderer::vals_internal::create<unsigned int>(unsigned int*, int, bool, bool, bool, nativefont::font_renderer::font_renderer::rgb_type, nativefont::font_renderer::font_renderer::rgb_type) in libdlib.a(fonts.o)  "_XCreateWindow", referenced from:      dlib::base_window::base_window(bool, bool) in libdlib.a(gui_core_kernel_2.o)      dlib::gui_core_kernel_2_globals::event_handler_thread::thread() in libdlib.a(gui_core_kernel_2.o)  "_XDefaultDepth", referenced from:      void nativefont::font_renderer::font_renderer::vals_internal::create<unsigned int>(unsigned int*, int, bool, bool, bool, nativefont::font_renderer::font_renderer::rgb_type, nativefont::font_renderer::font_renderer::rgb_type) in libdlib.a(fonts.o)  "_XDestroyIC", referenced from:      dlib::base_window::~base_window() in libdlib.a(gui_core_kernel_2.o)  "_XDestroyWindow", referenced from:      dlib::gui_core_kernel_2_globals::event_handler_thread::event_handler() in libdlib.a(gui_core_kernel_2.o)      dlib::base_window::close_window() in libdlib.a(gui_core_kernel_2.o)  "_XExtentsOfFontSet", referenced from:      void nativefont::font_renderer::font_renderer::vals_internal::create<unsigned int>(unsigned int*, int, bool, bool, bool, nativefont::font_renderer::font_renderer::rgb_type, nativefont::font_renderer::font_renderer::rgb_type) in libdlib.a(fonts.o)  "_XFillRectangle", referenced from:      void nativefont::font_renderer::font_renderer::vals_internal::create<unsigned int>(unsigned int*, int, bool, bool, bool, nativefont::font_renderer::font_renderer::rgb_type, nativefont::font_renderer::font_renderer::rgb_type) in libdlib.a(fonts.o)  "_XFilterEvent", referenced from:      dlib::gui_core_kernel_2_globals::event_handler_thread::event_handler() in libdlib.a(gui_core_kernel_2.o)  "_XFlush", referenced from:      dlib::gui_core_kernel_2_globals::event_handler_thread::event_handler() in libdlib.a(gui_core_kernel_2.o)      dlib::base_window::set_title(std::__1::basic_string<wchar_t, std::__1::char_traits<wchar_t>, std::__1::allocator<wchar_t> > const&) in libdlib.a(gui_core_kernel_2.o)      dlib::base_window::show() in libdlib.a(gui_core_kernel_2.o)      dlib::base_window::hide() in libdlib.a(gui_core_kernel_2.o)      dlib::base_window::set_size(int, int) in libdlib.a(gui_core_kernel_2.o)      dlib::base_window::set_pos(long, long) in libdlib.a(gui_core_kernel_2.o)      dlib::base_window::invalidate_rectangle(dlib::rectangle const&) in libdlib.a(gui_core_kernel_2.o)      ...  "_XFree", referenced from:      dlib::gui_core_kernel_2_globals::event_handler_thread::event_handler() in libdlib.a(gui_core_kernel_2.o)      dlib::get_from_clipboard(std::__1::basic_string<wchar_t, std::__1::char_traits<wchar_t>, std::__1::allocator<wchar_t> >&) in libdlib.a(gui_core_kernel_2.o)      dlib::base_window::base_window(bool, bool) in libdlib.a(gui_core_kernel_2.o)      dlib::base_window::set_title(std::__1::basic_string<wchar_t, std::__1::char_traits<wchar_t>, std::__1::allocator<wchar_t> > const&) in libdlib.a(gui_core_kernel_2.o)      dlib::base_window::set_size(int, int) in libdlib.a(gui_core_kernel_2.o)      dlib::base_window::set_im_pos(long, long) in libdlib.a(gui_core_kernel_2.o)  "_XFreeFontSet", referenced from:      dlib::base_window::~base_window() in libdlib.a(gui_core_kernel_2.o)      void nativefont::font_renderer::font_renderer::vals_internal::create<unsigned int>(unsigned int*, int, bool, bool, bool, nativefont::font_renderer::font_renderer::rgb_type, nativefont::font_renderer::font_renderer::rgb_type) in libdlib.a(fonts.o)      nativefont::font_renderer::font_renderer::vals_internal::~vals_internal() in libdlib.a(fonts.o)  "_XFreeGC", referenced from:      dlib::gui_core_kernel_2_globals::event_handler_thread::event_handler() in libdlib.a(gui_core_kernel_2.o)      void nativefont::font_renderer::font_renderer::vals_internal::create<unsigned int>(unsigned int*, int, bool, bool, bool, nativefont::font_renderer::font_renderer::rgb_type, nativefont::font_renderer::font_renderer::rgb_type) in libdlib.a(fonts.o)      nativefont::font_renderer::font_renderer::vals_internal::~vals_internal() in libdlib.a(fonts.o)  "_XFreeModifiermap", referenced from:      dlib::gui_core_kernel_2_globals::event_handler_thread::init_keyboard_mod_masks() in libdlib.a(gui_core_kernel_2.o)  "_XFreePixmap", referenced from:      void nativefont::font_renderer::font_renderer::vals_internal::create<unsigned int>(unsigned int*, int, bool, bool, bool, nativefont::font_renderer::font_renderer::rgb_type, nativefont::font_renderer::font_renderer::rgb_type) in libdlib.a(fonts.o)      nativefont::font_renderer::font_renderer::vals_internal::~vals_internal() in libdlib.a(fonts.o)  "_XFreeStringList", referenced from:      dlib::base_window::base_window(bool, bool) in libdlib.a(gui_core_kernel_2.o)      void nativefont::font_renderer::font_renderer::vals_internal::create<unsigned int>(unsigned int*, int, bool, bool, bool, nativefont::font_renderer::font_renderer::rgb_type, nativefont::font_renderer::font_renderer::rgb_type) in libdlib.a(fonts.o)  "_XGetICValues", referenced from:      dlib::base_window::base_window(bool, bool) in libdlib.a(gui_core_kernel_2.o)  "_XGetImage", referenced from:      void nativefont::font_renderer::font_renderer::vals_internal::create<unsigned int>(unsigned int*, int, bool, bool, bool, nativefont::font_renderer::font_renderer::rgb_type, nativefont::font_renderer::font_renderer::rgb_type) in libdlib.a(fonts.o)  "_XGetModifierMapping", referenced from:      dlib::gui_core_kernel_2_globals::event_handler_thread::init_keyboard_mod_masks() in libdlib.a(gui_core_kernel_2.o)  "_XGetSelectionOwner", referenced from:      dlib::get_from_clipboard(std::__1::basic_string<wchar_t, std::__1::char_traits<wchar_t>, std::__1::allocator<wchar_t> >&) in libdlib.a(gui_core_kernel_2.o)  "_XGetWindowProperty", referenced from:      dlib::get_from_clipboard(std::__1::basic_string<wchar_t, std::__1::char_traits<wchar_t>, std::__1::allocator<wchar_t> >&) in libdlib.a(gui_core_kernel_2.o)  "_XInitImage", referenced from:      dlib::gui_core_kernel_2_globals::event_handler_thread::event_handler() in libdlib.a(gui_core_kernel_2.o)  "_XInitThreads", referenced from:      dlib::gui_core_kernel_2_globals::event_handler_thread::thread() in libdlib.a(gui_core_kernel_2.o)  "_XInternAtom", referenced from:      dlib::gui_core_kernel_2_globals::event_handler_thread::event_handler() in libdlib.a(gui_core_kernel_2.o)      dlib::get_from_clipboard(std::__1::basic_string<wchar_t, std::__1::char_traits<wchar_t>, std::__1::allocator<wchar_t> >&) in libdlib.a(gui_core_kernel_2.o)      dlib::gui_core_kernel_2_globals::event_handler_thread::thread() in libdlib.a(gui_core_kernel_2.o)  "_XLookupString", referenced from:      dlib::gui_core_kernel_2_globals::event_handler_thread::event_handler() in libdlib.a(gui_core_kernel_2.o)  "_XMapRaised", referenced from:      dlib::base_window::show() in libdlib.a(gui_core_kernel_2.o)  "_XMoveWindow", referenced from:      dlib::gui_core_kernel_2_globals::event_handler_thread::event_handler() in libdlib.a(gui_core_kernel_2.o)      dlib::base_window::set_pos(long, long) in libdlib.a(gui_core_kernel_2.o)  "_XNextEvent", referenced from:      dlib::gui_core_kernel_2_globals::event_handler_thread::event_handler() in libdlib.a(gui_core_kernel_2.o)  "_XOpenDisplay", referenced from:      dlib::gui_core_kernel_2_globals::event_handler_thread::thread() in libdlib.a(gui_core_kernel_2.o)      void nativefont::font_renderer::font_renderer::vals_internal::create<unsigned int>(unsigned int*, int, bool, bool, bool, nativefont::font_renderer::font_renderer::rgb_type, nativefont::font_renderer::font_renderer::rgb_type) in libdlib.a(fonts.o)  "_XPeekIfEvent", referenced from:      dlib::get_from_clipboard(std::__1::basic_string<wchar_t, std::__1::char_traits<wchar_t>, std::__1::allocator<wchar_t> >&) in libdlib.a(gui_core_kernel_2.o)  "_XPending", referenced from:      dlib::gui_core_kernel_2_globals::event_handler_thread::event_handler() in libdlib.a(gui_core_kernel_2.o)  "_XPutBackEvent", referenced from:      dlib::gui_core_kernel_2_globals::event_handler_thread::~event_handler_thread() in libdlib.a(gui_core_kernel_2.o)  "_XPutImage", referenced from:      dlib::gui_core_kernel_2_globals::event_handler_thread::event_handler() in libdlib.a(gui_core_kernel_2.o)  "_XQueryColor", referenced from:      nativefont::font_renderer::font_renderer::vals_internal::color2rgb(unsigned long, _XDisplay*, unsigned long&) in libdlib.a(fonts.o)  "_XResizeWindow", referenced from:      dlib::gui_core_kernel_2_globals::event_handler_thread::event_handler() in libdlib.a(gui_core_kernel_2.o)      dlib::base_window::set_size(int, int) in libdlib.a(gui_core_kernel_2.o)  "_XScreenNumberOfScreen", referenced from:      dlib::base_window::get_display_size(unsigned long&, unsigned long&) const in libdlib.a(gui_core_kernel_2.o)  "_XSelectInput", referenced from:      dlib::base_window::base_window(bool, bool) in libdlib.a(gui_core_kernel_2.o)  "_XSendEvent", referenced from:      dlib::gui_core_kernel_2_globals::event_handler_thread::event_handler() in libdlib.a(gui_core_kernel_2.o)      dlib::gui_core_kernel_2_globals::event_handler_thread::~event_handler_thread() in libdlib.a(gui_core_kernel_2.o)  "_XSetBackground", referenced from:      void nativefont::font_renderer::font_renderer::vals_internal::create<unsigned int>(unsigned int*, int, bool, bool, bool, nativefont::font_renderer::font_renderer::rgb_type, nativefont::font_renderer::font_renderer::rgb_type) in libdlib.a(fonts.o)  "_XSetForeground", referenced from:      void nativefont::font_renderer::font_renderer::vals_internal::create<unsigned int>(unsigned int*, int, bool, bool, bool, nativefont::font_renderer::font_renderer::rgb_type, nativefont::font_renderer::font_renderer::rgb_type) in libdlib.a(fonts.o)  "_XSetICValues", referenced from:      dlib::base_window::set_im_pos(long, long) in libdlib.a(gui_core_kernel_2.o)  "_XSetNormalHints", referenced from:      dlib::gui_core_kernel_2_globals::event_handler_thread::event_handler() in libdlib.a(gui_core_kernel_2.o)      dlib::base_window::base_window(bool, bool) in libdlib.a(gui_core_kernel_2.o)      dlib::base_window::set_size(int, int) in libdlib.a(gui_core_kernel_2.o)  "_XSetSelectionOwner", referenced from:      dlib::put_on_clipboard(std::__1::basic_string<wchar_t, std::__1::char_traits<wchar_t>, std::__1::allocator<wchar_t> > const&) in libdlib.a(gui_core_kernel_2.o)  "_XSetWMName", referenced from:      dlib::base_window::set_title(std::__1::basic_string<wchar_t, std::__1::char_traits<wchar_t>, std::__1::allocator<wchar_t> > const&) in libdlib.a(gui_core_kernel_2.o)  "_XSetWMProtocols", referenced from:      dlib::base_window::base_window(bool, bool) in libdlib.a(gui_core_kernel_2.o)  "_XTranslateCoordinates", referenced from:      dlib::base_window::get_pos(long&, long&) in libdlib.a(gui_core_kernel_2.o)  "_XUnmapWindow", referenced from:      dlib::base_window::hide() in libdlib.a(gui_core_kernel_2.o)  "_XVaCreateNestedList", referenced from:      dlib::base_window::base_window(bool, bool) in libdlib.a(gui_core_kernel_2.o)      dlib::base_window::set_im_pos(long, long) in libdlib.a(gui_core_kernel_2.o)  "_XkbKeycodeToKeysym", referenced from:      dlib::gui_core_kernel_2_globals::event_handler_thread::init_keyboard_mod_masks() in libdlib.a(gui_core_kernel_2.o)  "_XwcDrawString", referenced from:      void nativefont::font_renderer::font_renderer::vals_internal::create<unsigned int>(unsigned int*, int, bool, bool, bool, nativefont::font_renderer::font_renderer::rgb_type, nativefont::font_renderer::font_renderer::rgb_type) in libdlib.a(fonts.o)  "_XwcFreeStringList", referenced from:      dlib::get_from_clipboard(std::__1::basic_string<wchar_t, std::__1::char_traits<wchar_t>, std::__1::allocator<wchar_t> >&) in libdlib.a(gui_core_kernel_2.o)  "_XwcLookupString", referenced from:      dlib::gui_core_kernel_2_globals::event_handler_thread::event_handler() in libdlib.a(gui_core_kernel_2.o)  "_XwcTextExtents", referenced from:      void nativefont::font_renderer::font_renderer::vals_internal::create<unsigned int>(unsigned int*, int, bool, bool, bool, nativefont::font_renderer::font_renderer::rgb_type, nativefont::font_renderer::font_renderer::rgb_type) in libdlib.a(fonts.o)  "_XwcTextListToTextProperty", referenced from:      dlib::base_window::set_title(std::__1::basic_string<wchar_t, std::__1::char_traits<wchar_t>, std::__1::allocator<wchar_t> > const&) in libdlib.a(gui_core_kernel_2.o)  "_XwcTextPropertyToTextList", referenced from:      dlib::get_from_clipboard(std::__1::basic_string<wchar_t, std::__1::char_traits<wchar_t>, std::__1::allocator<wchar_t> >&) in libdlib.a(gui_core_kernel_2.o)ld: symbol(s) not found for architecture x86_64clang: error: linker command failed with exit code 1 (use -v to see invocation)make: *** [3dCloud] Error 1