added boostrap info

INSTALL

@@ -38,11 +38,15 @@ a newer version of `autoconf'.
 
 The simplest way to compile this package is:
 
-  1. `cd' to the directory containing the package's source code and type
-     `./configure' to configure the package for your system.  If you're
-     using `csh' on an old version of System V, you might need to type
-     `sh ./configure' instead to prevent `csh' from trying to execute
-     `configure' itself.
+  0. `cd' to the directory containing the package's source code and type
+      ./bootstrap to make the build scripts.  Your system must have
+      autoconf, automake, and libtool installed to properly build
+      the build scripts.
+
+  1. Type `./configure' to configure the package for your system.  If
+     you're using `csh' on an old version of System V, you might need
+     to type `sh ./configure' instead to prevent `csh' from trying to
+     execute `configure' itself.
 
      Running `configure' takes awhile.  While running, it prints some
      messages telling which features it is checking for.