TestFlacon::testTextCodecs(02 - IBM866.src) fails on FreeBSD

[danfe]

The latest version 11.4.0 fails to pass the test suite on FreeBSD, apparently due to iconv-related peculiarities:

PASS   : TestFlacon::testTextCodecs(01 - windows-1251.src)
FAIL!  : TestFlacon::testTextCodecs(02 - IBM866.src) Unable to open iconv_open for IBM866: Invalid argument
Loc: [<long-path-stripped>/work/flacon-11.4.0/tests/test_textcodecs.cpp(71)]
PASS   : TestFlacon::testTextCodecs(03 - ISO-8859-5.src)

So it doesn't like IBM866 for some reason, and it's in fact not listed on FreeBSD as available codeset name:

$ iconv -l | grep IBM866
CP866 866 CSIBM866 MSCP866

This is contrary to GNU/Linux (Ubuntu 20.04.2):

$ iconv -l | grep IBM866
CSIBM866//
IBM866//
IBM866NAV//

[SokoloffA]

Hi, Alexey!
Changing the name is not a problem, but I need to make sure that the autodetect works correctly.

What the following command returns?

echo "Привет" | iconv -t cp866 | uchardet

[danfe]

echo "Привет" | iconv -t cp866 | uchardet

It returns IBM866 but that's probably because uchardet is the same on both systems, while iconv implementations differ.

[SokoloffA]

Please test issue_229 branch

[danfe]

Please test issue_229 branch

Totals: 370 passed, 0 failed, 0 skipped, 0 blacklisted, 178217ms :-)

[SokoloffA]

I put it to the main branch