Hi Albert, Thanks for the detailed report.
info/display.c seems to assume wchar support is available. Seems
find_diff() in info/display.c needs to compensate for lack of
HAVE_MBRTOWC.
I had the impression that gnulib provides all the wchar/multibyte
support needed these days. Sergey, can you look into this?
(If you need an account on a Solaris system, let me know.)
Karl
