diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 3502b56b28aed1c1af8d2afda14afe4350621224..f5cbb8e09d909513deb21ca0f3ac60375529e228 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2006-04-04  Tom Tromey  <tromey@redhat.com>
+
+	* doc/install.texi (Prerequisites): Mention jar.
+
 2006-04-04  Daniel Berlin  <dberlin@dberlin.org>
 
 	* doc/tree-ssa.texi (Preserving the virtual ssa form): New
diff --git a/gcc/doc/install.texi b/gcc/doc/install.texi
index 19201b858199750057adb5960ab53736737b9c08..4f5e8fffa5c80c09d0068b430e8a5f510e265094 100644
--- a/gcc/doc/install.texi
+++ b/gcc/doc/install.texi
@@ -305,6 +305,10 @@ release (4.1.3) when configured with @option{--enable-mpfr}.
 The @option{--with-mpfr} or @option{--with-mpfr-dir} configure option should
 be used if your MPFR Library is not installed in your library search path.
 
+@item jar
+
+Necessary to build libgcj, the GCJ runtime.
+
 @end table