# HG changeset patch
# User "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
# Date 1184336706 0
# Node ID 372bc84bea3630a6b7b6df7c1fbe0fece242f01b
# Parent  134ac2c35c49ab2dd580a206ceb3fb1c7d6384af
Document CT_OBSOLETE, CT_EXPERIMENTAL and CT_BROKEN.

diff -r 134ac2c35c49 -r 372bc84bea36 docs/overview.txt
--- a/docs/overview.txt	Fri Jul 13 12:22:34 2007 +0000
+++ b/docs/overview.txt	Fri Jul 13 14:25:06 2007 +0000
@@ -144,6 +144,27 @@
   An alias for the toolchian. It will be used as a prefix to the toolchain
   tools. For example, you will have ${CT_TARGET_ALIAS}-gcc
 
+Also, if you think you don't see enough versions, you can try to enable one of
+those:
+
+CT_OBSOLETE:
+  Show obsolete versions or tools. Most of the time, you don't want to base
+  your toolchain on too old a version (of gcc, for example). But at times, it
+  can come handy to use such an old version for regression tests. Those old
+  versions are hidden behind CT_BSOLETE.
+
+CT_EXPERIMENTAL:
+  Show experimental versions or tools. Again, you might not want to base your
+  toolchain on too recent tools (eg. gcc) for production. But if you need a
+  feature present only in a recent version, or a new tool, you can find them
+  hidden behind CT_EXPERIMENTAL.
+
+CT_BROKEN:
+  Show broken versions or tools. Some usefull tools are currently broken: they
+  won't compile, run, or worse, cause defects when running. But if you are
+  brave enough, you can try and debug them. They are hidden behind CT_BROKEN,
+  which itself is hiddent behind EXPERIMENTAL.
+
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                        /
 Running crosstool-NG  /