Log Message:
Apply several bugfixes:

1. fix ifdef symbol in parse.c
   XFT2 -> USE_XFT2

2. fix codeset names for iconv_open(3) in draw.c
   Two codeset names of `UTF8' and `iso2022jp' don't work on NetBSD.

3. fix comparison bug in draw.c
   A integer value should not be compared with a iconv_t variable
   directly.

4. fix PR pkg/24030

Fixes provided by Kouichirou Hiratsuka in PR pkg/24053.
Closes PR pkg/24053 and PR pkg/24030.