Document the update_seed option

diff --git a/doc/catalyst-spec.5.txt b/doc/catalyst-spec.5.txt
index 3be96fecb8a20a82f7ff9dc35997a868b5831e00..9a44558d2bccb4fa53a88841f9b2dd673b095a78 100644 (file)
--- a/doc/catalyst-spec.5.txt
+++ b/doc/catalyst-spec.5.txt
@@ -131,6 +131,11 @@ Since GRP is capable of building packages/source sets for more than
 one CD, this defines the layout for the directories under
 `$storedir/builds` (example: `src cd2`).
 
+*update_seed*::
+This is an optional setting supported by stage1 that runs an emerge
+command on the seed stage before starting the stage1 build. (example:
+`--update dev-libs/mpfr dev-libs/mpc dev-libs/gmp`)
+
 Compilation
 ~~~~~~~~~~~