Index: doc/install.texi
===================================================================
--- doc/install.texi	(revision 124850)
+++ doc/install.texi	(working copy)
@@ -1767,6 +1767,13 @@ native compiler.  You can then use the n
 cross compiler.  The installed native compiler needs to be GCC version
 2.95 or later.
 
+If the cross compiler is to be built with support for the Java
+programming language and the ability to compile .java source files is
+desired, the installed native compiler used to build the cross
+compiler needs to be the same GCC version as the cross compiler.  In
+addition the cross compiler needs to be configured with
+@option{--with-ecj-jar=@dots{}}.
+
 Assuming you have already installed a native copy of GCC and configured
 your cross compiler, issue the command @command{make}, which performs the
 following steps: