--- rxvt-unicode/README.unicode	2003/11/24 17:28:07	1.1
+++ rxvt-unicode/README.unicode	2003/12/16 23:04:12	1.2
@@ -7,7 +7,8 @@
   might be broken.
 
 - wchar_t MUST be UNICODE or ISO-10646-1 on your system, or various
-  things will break down.
+  things will break down. On GNU/Linux, this is true, on Solaris,
+  this is true only for "@ucs" locales, but you should have plenty of them.
 
 - rxvt ALWAYS expects utf-8 input, regardless of the locale, currently.
   so only start it in a utf-8-locale: "LC_CTYPE=en_US.UTF-8 rxvt" etc..