This IDN2_ENCODING_ERROR, which means that utf-8 to ucs4 encoding fails
for some reason. Looks like there is a problem with the system iconv()
function.
I am now on Solaris 10 / SPARC, compiled libidn2 with Solaris' 'cc' and
I also see some weird failures (but only two in test-lookup.log):
converting a plain ASCII string "abc" to UTF-8 fails.
Using gcc and the GNU libiconv doesn't give me an error.
Maybe there is a Solaris developer over here to dig deeper and to
develop a work-around. But since each Solaris version seems to have it's
own issues, I don't see much value in it.
Sorry for that, but not sure how I can help you.
Regards, Tim