Qt terminal error messages on cywin

[Tatsuro M. <tma...@ya...>]

With help by Enrico Forestieri
I can now use qt terminal on Cygwin.

At the plot, error messages appear:

libGL error: Windows-DRI extension not available
libGL error: No matching fbConfigs or visuals found
libGL error: failed to load driver: swrast
gnuplot> QXcbShmImage: shmget() failed (88: Function not implemented) for size 1394424 (642x543)


Any suggestions ?

Tatsuro