autogen.sh produces the Makefile.in's, which are necessary for the configure
script itself, and some more files for make. To run autogen.sh you'll need
-GNU autoconf and GNU automake (use recent versions! autoconf 2.53 and
-automake 1.6.1 are known to work).
-
-Again: "end users" do not need this step!
+GNU autoconf and GNU automake: at least autoconf 2.61 and automake 1.10 are
+requird, newer is better. But don't use automake 1.12 or newer for creating
+distribution archives: it will work but lack "de-ANSI-fucation" support in the
+generated Makefile's! Stick with automake 1.11.x for this purpose ...
+So automake 1.11.x and autoconf 2.67+ is recommended.
+
+Again: "end users" do not need this step and neither need GNU autoconf nor GNU
+automake at all!
2): "./configure"