New file.

doc/FAQ/tools.t

@@ -0,0 +1,47 @@
+@c
+@c  COPYRIGHT (c) 1988-1998.
+@c  On-Line Applications Research Corporation (OAR).
+@c  All rights reserved.
+@c
+@c  $Id$
+@c
+
+@chapter General Development Tool Hints
+
+The questions in this category are related to the GNU development tools
+in a non-language specific way.
+
+@section How do I generate a patch?
+
+The RTEMS patches to the development tools are generated using a 
+command like this
+
+@example
+diff -N -P -r -c TOOL-original-image TOOL-with-changes >PATCHFILE
+@end example
+
+where the options are:
+
+@itemize @bullet
+
+@item -N and -P take care of adding and removing files (be careful not to
+>include junk files like file.mybackup)
+
+@item -r tells diff to recurse through subdirectories
+
+@item -c is a context diff (easy to read for humans)
+
+@end itemize
+
+Please look at the generated PATCHFILE and make sure it does not 
+contain anything you did not intend to send to the maintainers.  
+It is easy to accidentally leave a backup file in the modified
+source tree or have a spurious change that should not be
+in the PATCHFILE.
+
+If you end up with the entire contents of a file in the patch 
+and can't figure out why, you may have different CR/LF scheme
+in the two source files.  The GNU open-source packages usually have
+UNIX style CR/LF.  If you edit on a Windows platform, the line 
+terminators may have been transformed by the editor into Windows
+style.