diff --git a/AUTHORS b/AUTHORS
index 503d87d..cc293bc 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -15,4 +15,9 @@ Nelson Beebe (assigned to the FSF)
     Original authors.
 
 Ineiev
-    Add AUTHORS, THANKS, NEWS, README, ChangeLog.
+    Add AUTHORS, THANKS, NEWS, README, ChangeLog, Makefile.am,
+    configure.ac, version.texi.
+
+    Tiny changes in c.texi.
+
+    Cleanup in Makefile.
diff --git a/ChangeLog b/ChangeLog
index 9110837..65b6e18 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,16 @@
 GNU C Intro and Reference - ChangeLog
 
+2023-09-25  Ineiev  <ineiev@gnu.org>
+
+	Add Autotools system in parallel with Makefile.
+
+	* Makefile.am:
+	* version.texi:
+	* configure.ac: New files.
+	* c.texi: Include version.texi.
+	* Makefile: Add copyright and license notices,
+	gather common dependencies in $(SOURCES), use $< and $@ in rules.
+
 
 -----
 
diff --git a/Makefile b/Makefile
index 130d2c5..ab5e18f 100644
--- a/Makefile
+++ b/Makefile
@@ -1,29 +1,35 @@
-c-manual.tgz: c.texi cpp.texi fp.texi fdl.texi
-	mkdir c-manual
-	ln Makefile c.texi cpp.texi fp.texi fdl.texi c-manual
-	tar czf c-manual.tgz c-manual
-	rm -rf c-manual
+# Simple Makefile to build the manual from Git checkout without
+# the need to bootstrap the build system.
+#
+# Copyright (C) 2023 Richard Stallman
+#
+# Copying and distribution of this file, with or without modification,
+# are permitted in any medium without royalty provided the copyright
+# notice and this notice are preserved.  This file is offered as-is,
+# without any warranty.
 
-c.info: c.texi cpp.texi fp.texi fdl.texi
+SOURCES = c.texi cpp.texi fp.texi gpl.texi fdl.texi version.texi
+
+c.info: $(SOURCES)
 	makeinfo c.texi
 
 c.pdf: c.dvi
-	dvipdf c.dvi
+	dvipdf $<
 
-c.dvi: c.texi cpp.texi fp.texi fdl.texi
-	texi2dvi c.texi
+c.dvi: $(SOURCES)
+	texi2dvi $<
 
-c.doc: c.texi cpp.texi fp.texi fdl.texi
-	makeinfo --docbook c.texi -o $@
-c.html: c.texi cpp.texi fp.texi fdl.texi
-	makeinfo --html --no-split c.texi -o $@
-c.html.d: c.texi cpp.texi fp.texi fdl.texi
-	makeinfo --html c.texi -o $@
-c.txt: c.texi cpp.texi fp.texi fdl.texi
-	makeinfo --plaintext c.texi > $@
+c.doc: $(SOURCES)
+	makeinfo --docbook $< -o $@
+c.html: $(SOURCES)
+	makeinfo --html --no-split $< -o $@
+c.html.d: $(SOURCES)
+	makeinfo --html $< -o $@
+c.txt: $(SOURCES)
+	makeinfo --plaintext $< > $@
 
 clean:
-	rm -f c-manual.tgz c.dvi c.pdf c.info c.info-* c.doc c.txt
-	rm -rf c.html
+	rm -f c.dvi c.pdf c.info c.info-* c.doc c.txt c.html
+	rm -rf c.html.d
 	rm -f c.aux c.cp c.fn c.ky c.log c.pg c.tmp c.toc c.tp c.vr
 	rm -f c.cps c.fns
diff --git a/Makefile.am b/Makefile.am
new file mode 100644
index 0000000..7b9a3f5
--- /dev/null
+++ b/Makefile.am
@@ -0,0 +1,3 @@
+info_TEXINFOS = c.texi
+c_TEXINFOS = cpp.texi fp.texi fdl.texi gpl.texi
+dist_doc_DATA = c.pdf
diff --git a/c.texi b/c.texi
index b37b251..609bd6c 100644
--- a/c.texi
+++ b/c.texi
@@ -9,6 +9,7 @@
 @c ??? alloca
 
 @setfilename ./c.info
+@include version.texi
 @settitle GNU C Language Manual
 @documentencoding UTF-8
 
diff --git a/configure.ac b/configure.ac
new file mode 100644
index 0000000..7560a8b
--- /dev/null
+++ b/configure.ac
@@ -0,0 +1,11 @@
+# Process this file with autoconf to produce a configure script:
+# autoreconf -vi
+# Public domain. Originally written by Ineiev, 2023.
+AC_INIT([GNU C Intro And Reference], [0.0-rc4], [c-manual@gnu.org],
+  [c-intro-and-ref], [https://www.gnu.org/software/c-intro-and-ref/])
+
+AC_PREREQ([2.65])
+AC_CONFIG_SRCDIR([c.texi])
+AM_INIT_AUTOMAKE([1.11])
+AC_CONFIG_FILES([Makefile])
+AC_OUTPUT
diff --git a/version.texi b/version.texi
new file mode 100644
index 0000000..36b94e0
--- /dev/null
+++ b/version.texi
@@ -0,0 +1 @@
+@set EDITION 0.0-rc4