Armin K. wrote:

> Summary: libdrm, MesaLib and FreeGlut (not really necesary) shouldn't be
> installed anywhere but in /usr. Those are not part of Xorg, those are
> independent projects. Xorg just depends on them to provide 3D stuff.
>
> And alas, sane users will install Xorg in /usr, otherwise it is a waste
> of time ...

I disagree.  I have MesaLib installed in /opt/xorg and it works fine:

$ find /opt/xorg -name libG\*
/opt/xorg/share/doc/MesaLib-8.0.4/libGL.txt
/opt/xorg/lib/libGLESv2.so.2.0.0
/opt/xorg/lib/libGLESv1_CM.so
/opt/xorg/lib/libGLU.so
/opt/xorg/lib/libGLESv1_CM.so.1.1.0
/opt/xorg/lib/libGL.so.1
/opt/xorg/lib/libGLESv2.so.2
/opt/xorg/lib/libGLU.so.1.3.08004
/opt/xorg/lib/libGLESv2.so
/opt/xorg/lib/libGL.so
/opt/xorg/lib/libGLESv1_CM.so.1
/opt/xorg/lib/libGL.so.1.2
/opt/xorg/lib/libGLU.so.1


The problem with /usr is that if you want to install another version of 
xorg from source, you develop inconsistent versions of programs and 
libraries during the install and lose your X display.  It's much easier 
to build to another prefix, exit xorg, change a symlink, and re-enter xorg.

If you are never going to upgrade xorg, then /usr is no problem.

   -- Bruce
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