--- embedaddon/bird/INSTALL	2017/08/22 12:33:54	1.1.1.1
+++ embedaddon/bird/INSTALL	2021/03/17 19:50:23	1.1.1.2
@@ -1,5 +1,5 @@
-How to install BIRD
-===================
+How to install BIRD 1.x.x
+=========================
 
 $ ./configure
 $ make
@@ -7,22 +7,34 @@ $ make
 
 Default location for configuration file is /usr/local/etc/bird.conf and
 for control socket is /usr/local/var/run/bird.ctl . You can change that
-by --sysconfdir and --localstatedir configure options.
+by --prefix, --sysconfdir and --runstatedir configure options, e.g.:
 
+$ ./configure --prefix=/usr --sysconfdir=/etc --runstatedir=/run
 
+To compile current development BIRD source code from Git repository, you
+also need Git (to download the source code) and Autoconf (to generate
+the configure script and associated files using 'autoreconf' tool):
+
+$ git clone https://gitlab.labs.nic.cz/labs/bird/ -b legacy
+$ cd bird
+$ autoreconf
+
+Then continue as in usual installation above.
+
+
 Requirements
 ============
 
 For compiling BIRD you need these programs and libraries:
 
- - GNU C Compiler
+ - GNU C Compiler (or LLVM Clang)
  - GNU Make
  - GNU Bison
  - GNU M4
  - Flex
 
  - ncurses library
- - GNU Readline library (2.1 or newer)
+ - GNU Readline library
 
 For compiling BIRD documentation you also need: