- simdzone-zone-load, document to get git submodule and autoreconf,

and add generated files to gitignore.

.gitignore

@@ -3,11 +3,15 @@
 /.libs/
 /.source
 /Makefile
+/aclocal.m4
 /autom4te.cache/
+/config.guess
 /config.h
 /config.h.in~
 /config.log
 /config.status
+/config.sub
+/configure
 /configure~
 /dnstap/dnstap_config.h
 /dnscrypt/dnscrypt_config.h
@@ -25,6 +29,7 @@
 /doc/unbound.conf.5
 /libtool
 /libunbound.la
+/ltmain.sh
 /_unbound.la
 /smallapp/unbound-control-setup.sh
 /unbound

README

@@ -1,4 +1,5 @@
 Unbound README
+* From source repository: git submodule update --init && autoreconf -fi
 * ./configure && make && make install
 * You can use libevent if you want. libevent is useful when using 
   many (10000) outgoing ports. By default max 256 ports are opened at

README.md

@@ -19,6 +19,14 @@ You can learn more about Unbound by reading our
 Make sure you have the C toolchain, OpenSSL and its include files, and libexpat
 installed.
 If building from the repository source you also need flex and bison installed.
+If building from the repository source, also init the git submodule and
+create the configure script with:
+
+```
+git submodule update --init
+autoreconf -fi
+```
+
 Unbound can be compiled and installed using:
 
 ```