X-Git-Url: http://git.chise.org/gitweb/?p=m17n%2Fm17n-docs.git;a=blobdiff_plain;f=mainpage.txt;h=07563aae6be91d60725c02daf4766647a4974595;hp=80cd6f4f15b621b472569d1e8888e5f4ac9cc044;hb=9284ddb5f8bc0d1d416e053b5d85534eeeb81ba2;hpb=0fed4b8c9ff5012a3323c28de700144f10724e0c

diff --git a/mainpage.txt b/mainpage.txt
index 80cd6f4..07563aa 100644
--- a/mainpage.txt
+++ b/mainpage.txt
@@ -65,15 +65,18 @@ mandatory but several functions of the m17n library depend on them.
 <ul>
 <li> m17n-db -- http://www.m17n.org/m17n-db/
 
-     Used by @ref m17nShell and @ref m17nGUI..
+     Used by @ref m17nShell and @ref m17nGUI.
 
 <li> libxml2 -- http://xmlsoft.org/
 
      Used by the functions mtext_serialize () and mtext_deserialize ().
+     Those functions return NULL libxml2 is not avairable,
 
 <li> fribidi -- http://fribidi.sourceforge.net/
 
-     Used for BIDI processing.
+     Used for BIDI processing.  If it is not avairable, the rendering
+     engine of the m17n library can't handle such scritp as Arabic and
+     Hebrew correctly.
 
 <li> freetype -- http://www.freetype.org/