我曾經update-alternatives選擇英偉達-367作為 opengl 的提供者。
我運行了 ldconfig
我檢查了所有符號連結是否有效並指向正確的資料夾·
root@laptop:/etc/ld.so.conf.d# ls -halt
lrwxrwxrwx 1 root root 41 sep. 2 18:59 i386-linux-gnu_EGL.conf -> /etc/alternatives/i386-linux-gnu_egl_conf
lrwxrwxrwx 1 root root 40 sep. 2 18:59 i386-linux-gnu_GL.conf -> /etc/alternatives/i386-linux-gnu_gl_conf
lrwxrwxrwx 1 root root 43 sep. 2 18:59 x86_64-linux-gnu_EGL.conf -> /etc/alternatives/x86_64-linux-gnu_egl_conf
lrwxrwxrwx 1 root root 42 sep. 2 18:59 x86_64-linux-gnu_GL.conf -> /etc/alternatives/x86_64-linux-gnu_gl_conf
root@laptop:/etc/alternatives# cat x86_64-linux-gnu_gl_conf
/usr/lib/nvidia-367
/usr/lib32/nvidia-367
但當我-Wl,--verbose在專案建置期間傳遞給 g++ 時，我仍然得到以下資訊：
[...]
attempt to open /home/lennart/Qt/5.7/5.7/gcc_64/lib/libGL.so failed
attempt to open /home/lennart/Qt/5.7/5.7/gcc_64/lib/libGL.a failed
attempt to open /usr/lib64/libGL.so failed
attempt to open /usr/lib64/libGL.a failed
attempt to open /usr/lib/gcc/x86_64-linux-gnu/4.9/libGL.so failed
attempt to open /usr/lib/gcc/x86_64-linux-gnu/4.9/libGL.a failed
attempt to open /usr/lib/gcc/x86_64-linux-gnu/4.9/../../../x86_64-linux-gnu/libGL.so failed
attempt to open /usr/lib/gcc/x86_64-linux-gnu/4.9/../../../x86_64-linux-gnu/libGL.a failed
attempt to open /usr/lib/gcc/x86_64-linux-gnu/4.9/../../../../lib/libGL.so failed
attempt to open /usr/lib/gcc/x86_64-linux-gnu/4.9/../../../../lib/libGL.a failed
attempt to open /lib/x86_64-linux-gnu/libGL.so failed
attempt to open /lib/x86_64-linux-gnu/libGL.a failed
attempt to open /lib/../lib/libGL.so failed
attempt to open /lib/../lib/libGL.a failed
attempt to open /usr/lib/x86_64-linux-gnu/libGL.so failed
attempt to open /usr/lib/x86_64-linux-gnu/libGL.a failed
attempt to open /usr/lib/../lib/libGL.so failed
attempt to open /usr/lib/../lib/libGL.a failed
attempt to open /usr/lib/gcc/x86_64-linux-gnu/4.9/../../../libGL.so failed
attempt to open /usr/lib/gcc/x86_64-linux-gnu/4.9/../../../libGL.a failed
attempt to open //usr/local/lib/x86_64-linux-gnu/libGL.so failed
attempt to open //usr/local/lib/x86_64-linux-gnu/libGL.a failed
attempt to open //lib/x86_64-linux-gnu/libGL.so failed
attempt to open //lib/x86_64-linux-gnu/libGL.a failed
attempt to open //usr/lib/x86_64-linux-gnu/libGL.so failed
attempt to open //usr/lib/x86_64-linux-gnu/libGL.a failed
attempt to open //usr/local/lib64/libGL.so failed
attempt to open //usr/local/lib64/libGL.a failed
attempt to open //lib64/libGL.so failed
attempt to open //lib64/libGL.a failed
attempt to open //usr/lib64/libGL.so failed
attempt to open //usr/lib64/libGL.a failed
attempt to open //usr/local/lib/libGL.so failed
attempt to open //usr/local/lib/libGL.a failed
attempt to open //lib/libGL.so failed
attempt to open //lib/libGL.a failed
attempt to open //usr/lib/libGL.so failed
attempt to open //usr/lib/libGL.a failed
attempt to open //usr/x86_64-linux-gnu/lib64/libGL.so failed
attempt to open //usr/x86_64-linux-gnu/lib64/libGL.a failed
attempt to open //usr/x86_64-linux-gnu/lib/libGL.so failed
attempt to open //usr/x86_64-linux-gnu/lib/libGL.a failed
[...]
/usr/bin/ld: cannot find -lGL
collect2: error: ld returned 1 exit status
如您所見，即使 ld config 已明確配置為查看它，任何地方都沒有提及 nvidia-367 資料夾。
是什麼賦予了？