Reginald Beardsley <[email protected]> asks on the list today:
>> Does anyone know what the missing environment variable is or
>> where the reference to
>> /usr/X11/lib/modules/extensions//libglx.so
>> is located?
On a Fedora 33 Linux system, I find that library in
/usr/lib64/xorg/modules/extensions/libglx.so
On an Oracle Solaris 11 systems, I find it in two locations:
/usr/lib/mesa/modules/extensions/libglx.so
/usr/lib/xorg/modules/extensions/libglx.so
On a Sun Solaris 10 system, I find several copies
/usr/X11/lib/modules/extensions/amd64/libglx.so
/usr/X11/lib/modules/extensions/libglx.so
/usr/X11/lib/modules/extensions/mesa/amd64/libglx.so
/usr/X11/lib/modules/extensions/mesa/libglx.so
/usr/X11/lib/modules/extensions/NVIDIA/amd64/libglx.so
/usr/X11/lib/modules/extensions/NVIDIA/amd64/libglx.so.1
/usr/X11/lib/modules/extensions/NVIDIA/libglx.so
/usr/X11/lib/modules/extensions/NVIDIA/libglx.so.1
/var/run/opengl/server/amd64/libglx.so
/var/run/opengl/server/libglx.so
Thus, I suspect that the double slash that you reported is innocuous,
and valid, because in the V6 Unix kernel documented in John Lyons'
book, the path traveral has something like
while (*s == '/') s++;
instead of
if (*s == '/') s++;
I found that snippet several years ago when we were writing Classic
Shell Scripting, and we wanted to know if adjacent slashes in a
pathname are legal: the V6 code shows that the answer is yes.
Of course, the Solaris 10 system also shows intervening mesa and
NVIDIA components, so it certainly is worth checking whether a simple
symlink will allow the library to be found.
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