* building.texi (Compilation): Improve instructions for running two compilations (Bug#7573).

doc/emacs/ChangeLog

 2011-01-15  Chong Yidong  <cyd@stupidchicken.com>
 
+	* building.texi (Compilation): Improve instructions for running two
+	compilations (Bug#7573).
+
 	* files.texi (Backup Names): Document the new location of the
 	last-resort backup file.
 

doc/emacs/building.texi

@@ -122,10 +122,10 @@ confirmation before actually killing a compilation that is running.
 You can also kill the compilation process with @kbd{M-x
 kill-compilation}.
 
-  If you want to run two compilations at once, you should start the
-first one, then rename the @samp{*compilation*} buffer (perhaps using
-@code{rename-uniquely}; @pxref{Misc Buffer}), and start the other
-compilation.  That will create a new @samp{*compilation*} buffer.
+  To run two compilations at once, start the first one, then rename
+the @samp{*compilation*} buffer (perhaps using @code{rename-uniquely};
+@pxref{Misc Buffer}), then switch buffers and start the other
+compilation.  This will create a new @samp{*compilation*} buffer.
 
   Emacs does not expect a compiler process to launch asynchronous
 subprocesses; if it does, and they keep running after the main