[GRASSLIST:3200] NVIZ2.2 compile error TkIntDecls.h redux

[Andrew]

I have compiled the Grass 5.0.0pre3 from source with only the nviz
failure as noted in postings in January (I have TclTk 8.2 and had to
rename TkIntDecls8.2.3.h to TkIntDecls.h to get nviz to compile).

I have attempted to start nviz from the TclTkgrass interface (and from
the grass command line). The program starts and opens the "waiting"
window, prints the line about loading the panels from the index (default
/usr/local/grass5/etc/nviz2.2/scripts/panelIndex) and goes into an
infinite do-nothing mode. I can stop and continue from the startup
interface button, exit by right clicking, but nothing else happens.

Suggestions from anyone?