linux - 获取静态链接Qt5的XCB插件的加载库或链接错误

Question

尝试创建 C++ Qt5.6.1 应用程序并在 Debian 上启动它。获取链接错误或加载库错误。

Qt 构建到静态库，使用的配置

configure -release -confirm-license -opensource -static -no-dbus -no-openssl -no-qml-debug -no-opengl -qt-freetype -qt-xcb -nomake tools -nomake tests -nomake examples -no-sql-db2 -no-sql-oci -no-sql-tds -no-sql-sqlite2 -no-sql-odbc -no-sql-ibase -no-sql-psql -skip doc -skip imageformats -skip webchannel -skip webengine -skip webview -skip sensors -skip serialport -skip script -skip multimedia

使用 Cmake 创建的项目，库是这样指定的:

SET(CMAKE_PREFIX_PATH ${CMAKE_PREFIX_PATH} "${QT5_LIB_ROOT}/cmake")

FIND_PACKAGE(Qt5Core REQUIRED)
FIND_PACKAGE(Qt5Gui REQUIRED)
FIND_PACKAGE(Qt5Widgets REQUIRED)
FIND_PACKAGE(Qt5Network REQUIRED)

FIND_PACKAGE( PNG REQUIRED )
FIND_PACKAGE( ZLIB REQUIRED)
FIND_PACKAGE( Threads REQUIRED )

IF(CMAKE_BUILD_TYPE STREQUAL "Debug")
   SET(QT_LIBS
      libqtharfbuzzng_debug.a
      libqtpcre_debug.a
      libQt5PlatformSupport_debug.a
      libxcb-static_debug.a
      )
ELSE()
   SET(QT_LIBS
      libqtharfbuzzng.a
      libqtpcre.a
      libQt5PlatformSupport.a
      libxcb-static.a
      )
ENDIF(CMAKE_BUILD_TYPE STREQUAL "Debug")

SET(OS_SPECIFIC_LIBS
   dl
   Qt5::QXcbIntegrationPlugin
   ${CMAKE_THREAD_LIBS_INIT}
   ${ZLIB_LIBRARIES}
   ${PNG_LIBRARY} )

FOREACH(lib_name ${QT_LIBS})
   IF(NOT EXISTS ${QT5_LIB_ROOT}/${lib_name})
      MESSAGE(FATAL_ERROR "Could not locate required Qt lib ${QT5_LIB_ROOT}/${lib_name}")
   ENDIF()

   LIST(APPEND OS_SPECIFIC_LIBS ${QT5_LIB_ROOT}/${lib_name})
ENDFOREACH(lib_name)

如果我在代码中导入 XCB 插件 ( Q_IMPORT_PLUGIN(QXcbIntegrationPlugin) 它会给我链接错误:

    /Qt5/plugins/platforms/libqxcb.a(qxcbmain.o): In function `QXcbIntegrationPlugin::create(QString const&, QStringList const&, int&, char**)':
qxcbmain.cpp:(.text+0x67): undefined reference to `QXcbIntegration::QXcbIntegration(QStringList const&, int&, char**)'

Anf 如果我不导入插件 - 它不会以错误开头:

This application failed to start because it could not find or load the Qt platform plugin "xcb"

有什么帮助吗？建议？

谢谢。

Answer 1

解决方案很简单——只需链接适当的系统库:添加固定

FIND_PACKAGE( X11 REQUIRED )

SET(OS_SPECIFIC_LIBS
   ...
   xcb
   X11-xcb
   ${X11_LIBRARIES}
)