Mageia forum

I have a question on how libGL.so is symlinked.
When I do a "ll /lib64/libGL.so*" I get

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lrwxrwxrwx 1 root root     14 maj 27 18:56 /lib64/libGL.so -> libGL.so.1.2.0*
lrwxrwxrwx 1 root root     14 maj 24 19:10 /lib64/libGL.so.1 -> libGL.so.1.2.0*
-rwxr-xr-x 1 root root 526560 maj 24 12:52 /lib64/libGL.so.1.2.0*


So apparently libGL.so.1 is symlinked to /lib64/libGL.so.1.2.0.
But when I do a "ldd /bin/glxgears" I get (mong others):

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 libGL.so.1 => /usr/lib64/fglrx/libGL.so.1 (0x00007fd694722000)


So according to this libGL.so is (sym?)linked to /usr/lib64/fglrx/libGL.so.1 or is it hardlinked or mounted?
Can anyone explain to me what happens here. Its kind of interesting

Not on Mageia right now, but normally shared libraries are searched for by looking up the paths listed in the /etc/ld.so.conf and /etc/ld.so.conf.d/* files, so you should have a look there.

Ok, I see. And /etc/ld.so.conf.d/GL.conf is symlinked through /etc/alternatives/gl_conf to /etc/ld.so.conf.d/GL/ati.conf, which contains directions to ldconfig on how to dynamically link at run-time.
If I do "/sbin/ldconfig -p" I get:

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        libGL.so.1 (libc6,x86-64) => /usr/lib64/fglrx/libGL.so.1
        libGL.so.1 (libc6,x86-64) => /lib64/libGL.so.1
        libGL.so.1 (libc6) => /usr/lib/fglrx/libGL.so.1
        libGL.so.1 (libc6) => /lib/libGL.so.1
        libGL.so (libc6,x86-64) => /usr/lib64/fglrx/libGL.so
        libGL.so (libc6,x86-64) => /lib64/libGL.so
        libGL.so (libc6) => /usr/lib/fglrx/libGL.so


which meens that /usr/lib64/fglrx/libGL.so preceeds /lib64/libGL.so.1

And therefore it works!!!! Impressing.
Thank you very much, ITA84.
I love to learn new stuff