LC_CTYPE=fr_FR.ISO8859-1 with xterm - still French accented characters are corrupted

[Anton Shterenlikht]

I tried, in tcsh: 

% setenv |grep FR
XTERM_LOCALE=fr_FR.ISO8859-1
LC_CTYPE=fr_FR.ISO8859-1

but the accented French characters are corrupted, e.g. in
/usr/ports/french/aster/pkg-descr.

I built xterm with 

% make -C /usr/ports/x11/xterm showconfig
===> The following configuration options are available for xterm-296:
     256COLOR=on: Enable 256-color support
     DABBREV=off: Enable support for dabbrev-expand
     DECTERM=off: Enable DECterm Locator support
     GNOME=off: GNOME desktop environment support
     LUIT=on: Use LUIT for locale convertion from/to UTF-8
     PCRE=on: Use Perl Compatible Regular Expressions
     SIXEL=on: Enable Sixel graphics support
     WCHAR=on: Enable wide-character support
===> Use 'make config' to modify these settings

I usually can read russian with either
ru_RU.KOI8-R or en_US.UTF-8 in xterm, so I think
the xterm is set up correctly to view 8-bit characters.

Please advise

Thanks

Anton