Source: http://www.gnu.org/software/m4/manual/m4.html

GNU M4 1.4.16 macro processor

2 Invoking m4

The format of the m4 command is:

     m4 [option...] [file...]

All options begin with ‘’, or if long option names are used, with ‘’.

The argumentis a marker to denote the end of options.

In other words, m4 -QPDfoo -d a -df is equivalent to m4 -Q -P -D foo -d -df -- ./a, although the latter form is considered canonical.继续阅读

Source: http://www.gnu.org/prep/maintain/maintain.html

3 Getting a GNU Account

The directory ‘/gd/gnuorg’ mentioned throughout this document is available on the general GNU server, currently fencepost.gnu.org. If you are the maintainer of a GNU package, you should have an account there. If you don’t have one already, http://www.gnu.org/software/README.accounts.html. You can also ask for accounts for people who significantly help you in working on the package.继续阅读

Source EN: http://www.gnu.org/software/autoconf/manual/autoconf.html(version 2.68)

CN: http://www.linuxforum.net/books/autoconf.html(version 2.13)

Edition 2.13, for Autoconf version 2.13

  1. 介绍

A physicist, an engineer, and a computer scientist were discussing the 
nature of God. Surely a Physicist, said the physicist, because 
early in the Creation, God made Light; and you know, Maxwell's equations, 
the dual nature of electro-magnetic waves, the relativist consequences... 
An Engineer!, said the engineer, because before making Light,
 God split the Chaos into Land and Water; it takes a hell of 
an engineer to handle that bigamount of mud, and orderly 
separation of solids from liquids... The computer scientist 
shouted: And the Chaos, where do you think it was coming from, hmm?
                                                                          ---Anonymous继续阅读