about the cross_compile of openoffice

[belleshi]

dear friends:
   i want to to embedded the openoffice, so i need to cross_compile the openoffice. but when i use the ./configure --help in the dir of config_office, i saw these words:

if test "$build" != "$host" -o "$build" != "$target" \
  -o "$host" != "$target"; then
        AC_MSG_WARN([cross-compiling by any means is not supported (yet)!])
        echo "cross-compiling by any means is not supported (yet)!" >> warn
fi
 
there is ""cross-compiling by any means is not supported"", is it mesns that the openoffice can't do cross_compile at all? or it needs extra things to do the cross_compile? can you give me a guide?
 
thank you very much !!!!
best wishes!
belle from china