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导入的目标“Qt5::Gui”引用文件“/usr/lib/x86_64-linux-gnu/libEGL.so”，但该文件不存在。

tag-icon • tag-icon compiling libraries opengl
导入的目标“Qt5::Gui”引用文件“/usr/lib/x86_64-linux-gnu/libEGL.so”，但该文件不存在。

因此，15.04 x64，刚刚安装。

我以旧方式（控制台，关闭 lightdm）安装了 nvidia 二进制文件，因为我收到有关 DRI2 身份验证的错误。

然后我想构建 nv opengl 样本，他们说这些是先决条件：

sudo apt-get install g++ binutils-gold xorg-dev libglu1-mesa-dev

但后来它抱怨缺少 libGL.so，所以我在谷歌上搜索并尝试安装所有这些东西：

   61  sudo apt-get install libgl1-mesa-dev 
   62  sudo apt-get autoremove
   63  make
   64  sudo apt-get install mesa-common-dev 
   65  sudo apt-get install freeglut3-dev freeglut3
   66  make
   67  sudo apt-get install build-essential

然后，我不知道怎么回事，我最终卸载了 nvidia 驱动程序！（中间还有一个包含一些 nv 内容的自动删除程序，也许把一切都搞乱了）

无论如何，在重新安装 nv 二进制文件后，我尝试构建 vogl（一个 GL 调试工具），然后再次

elect@elect-desktop:~/NetBeansProjects/vogl/vogl_build/release64$ cmake -DCMAKE_BUILD_TYPE=Release -DBUILD_X64=On ../..

cmake options:
  -DCMAKE_BUILD_TYPE='Release': Build debug or release. (Debug|Release)
  -DVOGLTEST_LOAD_LIBVOGLTRACE='': glitest will load libvogltrace.so manually (don't implictly link against libgl.so). (On|Off)
  -DVOGLTRACE_NO_PUBLIC_EXPORTS='OFF': Don't define any public GL exports in libvogltrace.so. (On|Off)
  -DVOGL_ENABLE_ASSERTS='OFF': Enable assertions in all voglcore builds (including release). (On|Off)
  -DCMAKE_VERBOSE='OFF': Spew cmake project options. (On|Off)
  -DBUILD_X64='On': Build 32 or 64-bit. (On|Off)
  -DWITH_ASAN='OFF': Build with Address sanitizer. (On|Off)
  -DUSE_TELEMETRY='OFF': Build with Telemetry. (On|Off)
  -DUSE_MALLOC='': Use system malloc (not STB Malloc). (On|Off)

Not forcing assertions to be enabled (VOGL_ENABLE_ASSERTS=FALSE)
libvogltrace.so will define GL/GLX public exports
CMake Error at /usr/lib/x86_64-linux-gnu/cmake/Qt5Gui/Qt5GuiConfig.cmake:27 (message):
  The imported target "Qt5::Gui" references the file

     "/usr/lib/x86_64-linux-gnu/libEGL.so"

  but this file does not exist.  Possible reasons include:

  * The file was deleted, renamed, or moved to another location.

  * An install or uninstall procedure did not complete successfully.

  * The installation package was faulty and contained

     "/usr/lib/x86_64-linux-gnu/cmake/Qt5Gui/Qt5GuiConfigExtras.cmake"

  but not all the files it references.

Call Stack (most recent call first):
  /usr/lib/x86_64-linux-gnu/cmake/Qt5Gui/Qt5GuiConfigExtras.cmake:32 (_qt5_Gui_check_file_exists)
  /usr/lib/x86_64-linux-gnu/cmake/Qt5Gui/Qt5GuiConfigExtras.cmake:54 (_qt5gui_find_extra_libs)
  /usr/lib/x86_64-linux-gnu/cmake/Qt5Gui/Qt5GuiConfig.cmake:158 (include)
  /usr/lib/x86_64-linux-gnu/cmake/Qt5Widgets/Qt5WidgetsConfig.cmake:100 (find_package)
  /usr/lib/x86_64-linux-gnu/cmake/Qt5/Qt5Config.cmake:26 (find_package)
  src/vogleditor/CMakeLists.txt:14 (find_package)


-- Configuring incomplete, errors occurred!
See also "/home/elect/NetBeansProjects/vogl/vogl_build/release64/CMakeFiles/CMakeOutput.log".
See also "/home/elect/NetBeansProjects/vogl/vogl_build/release64/CMakeFiles/CMakeError.log".

elect@elect-desktop:~/NetBeansProjects/vogl/vogl_build/release64$ ls /usr/lib/x86_64-linux-gnu | grep -i libegl
libEGL.so
libEGL.so.1
libEGL.so.346.59

各位，发生什么问题了？

答案1

无论如何，让我总结一下这个故事......

$ ls /usr/lib/x86_64-linux-gnu | grep -i libegl
libEGL.so 
libEGL.so.1 
libEGL.so.346.59

ls -l /usr/lib/x86_64-linux-gnu/libEGL.so
lrwxrwxrwx 1 root root 18 mar 30 17:10 /usr/lib/x86_64-linux-gnu/libEGL.so -> mesa-egl/libEGL.so

和

lrwxrwxrwx 1 root root 15 mar 30 17:10 /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so -> libEGL.so.1.0.0

但是我没有任何 libEGL.so.1.0.0..

所以看起来这是来自 mesa 和 nv 二进制文件的混乱

我第三次安装了二进制文件并且成功了。

另一个可能的解决方案是 Angelo Geels 的解决方案（在评论中）：

sudo rm /usr/lib/x86_64-linux-gnu/libEGL.so; sudo ln /usr/lib/x86_64-linux-gnu/libEGL.so.1 /usr/lib/x86_64-linux-gnu/libEGL.so

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