1. libiconv-1.1 has been checked in src/xlibi18n/lcUniconv serveral years ago,
file list is below:
8bit_tab_to_h.c,cp1251.h,iso8859_13.h,iso8859_5.h,jisx0212.h,tcvn.h,armscii_8.h
       ,cp1255.h,iso8859_14.h,iso8859_6.h,koi8_c.h,tis620.h,ascii.h,cp1256.h,  
        iso8859_15.h,iso8859_7.h,koi8_r.h,ucs2be.h,big5_emacs.h,gb2312.h,      
  
iso8859_16.h,iso8859_8.h,koi8_u.h,utf8.h,big5.h,georgian_academy.h,iso8859_1.h ,
       iso8859_9e.h,ksc5601.h,viscii.h,cjk_tab_to_h.c,georgian_ps.h,iso8859_2.h,
       iso8859_9.h,mulelao.h,iso8859_10.h,iso8859_3.h,jisx0201.h,cp1133.h,     
   iso8859_11.h,iso8859_4.h,jisx0208.h,tatar_cyr.h

2.currently, the latest libiconv is version 1.11,we need get some encoding
conversion tables from libiconv-1.11 to support some new charset,such as
gbk,gb18030,hkscs.

For solaris(maybe including other Unix),the performance of libc iconv is less
than libiconv,so fixing this bug will improve the performance for some Xlib
APIs(XmbTextListToTextProperty, XwcTextListToTextProperty,
XmbTextPropertyToTextList, XwcTextPropertyToTextList) for solaris.