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-rw-r--r--README16
1 files changed, 14 insertions, 2 deletions
diff --git a/README b/README
index 5244f9f326..3648721333 100644
--- a/README
+++ b/README
@@ -20,11 +20,23 @@ Guix currently depends on the following packages:
   - [[http://gnupg.org/][GNU libgcrypt]], or [[http://nongnu.org/libchop/][libchop]]
 
 For bootstrapping purposes, it is useful to reuse packages from Nixpkgs.
-For this to work, you need to have a checkout of the Nixpkgs repository,
-with the `NIXPKGS' environment variable pointing to it.
+For this to work, you need to have a checkout of the Nixpkgs repository;
+the `--with-nixpkgs' option allows you to let `configure' know where the
+Nixpkgs checkout is.
 
   - [[http://nixos.org/nixpkgs/][Nixpkgs]]
 
+When building Guix from a checkout, the following packages are also
+required:
+
+  - [[http://www.gnu.org/software/autoconf/][GNU Autoconf]]
+  - [[http://www.gnu.org/software/automake/][GNU Automake]]
+  - [[http://www.gnu.org/software/gettext/][GNU Gettext]]
+
+The "autoreconf -vi" command can be used to generate the build system
+infrastructure; it reports an error if an inappropriate version of the
+above packages is being used.
+
 * How It Works
 
 Guix does the high-level preparation of a /derivation/.  A derivation is