diff -r 372bc84bea36 -r 835178a32fc1 docs/overview.txt
--- a/docs/overview.txt	Fri Jul 13 14:25:06 2007 +0000
+++ b/docs/overview.txt	Tue Jul 17 21:44:33 2007 +0000
@@ -165,6 +165,22 @@
   brave enough, you can try and debug them. They are hidden behind CT_BROKEN,
   which itself is hiddent behind EXPERIMENTAL.
 
+Re-building an existing toolchain |
+----------------------------------+
+
+If you have an existing toolchain, you can re-use the options used to build it
+to create a new toolchain. That needs a very little bit of effort on your side
+but is quite easy. The options to build a toolchain are saved in the build log
+file that is saved within the toolchain. crosstool-NG can extract those options
+to recreate a new configuration:
+  ct-ng extractconfig </path/to/your/build.log
+
+will extract those options, prompt you for the new ones, which you can later
+edit with menuconfig.
+
+Of course, if your build log was compressed, you'd have to use something like:
+  bzcat /path/to/your/build.log.bz2 |ct-ng extractconfig
+
 ________________________
                        /
 Running crosstool-NG  /