1 files changed, 21 insertions, 6 deletions

diff --git a/INSTALL.BZR b/INSTALL.BZR
index 710a73c7048..3859e3cd4fc 100644
--- a/INSTALL.BZR
+++ b/INSTALL.BZR
@@ -4,14 +4,29 @@ See the end of the file for license conditions.
 
               Building and Installing Emacs from Bazaar
 
-If this is the first time you go through it, you'll need to configure
-before bootstrapping:
+Building Emacs from Bazaar requires some tools that are not needed
+when building from a release.  You will need:
 
-  $ ./configure
+autoconf  - at least the version specified near the start of
+  configure.in (in the AC_PREREQ command).
+automake  - we recommend at least version 1.11.
+makeinfo  - not strictly necessary, but highly recommended, so that
+  you can build the manuals.
+
+The `autogen.sh' script can help you figure out if you have the
+necessary tools.
+
+The first time you build, there are a couple of extra steps.
+First, generate the `configure' script:
+
+  $ ./autogen.sh
 
-(Normally there is no need to run `autoconf' etc.  If you do need it,
-the relevant command is `autoreconf -I m4'.  Be aware that this will
-likely lead to conflicts next time you update from Bazaar.)
+(or you can just run `autoreconf -I m4').
+
+You can then configure your build (use `./configure --help' to see
+options you can set):
+
+  $ ./configure
 
 Some of the files that are included in the Emacs tarball, such as
 byte-compiled Lisp files, are not stored in Bazaar.  Therefore, to