Add Ansi2knr handling

+1999-11-15  Jeff Bailey  <jbailey@nisa.net>
+
+	* lib/ansi2knr*: Add
+
+	* configure.in: Add AM_C_PROTOTYPES
+
+	* libmailbox/Makefile.am: Add ansi2knr handling
+
 1999-11-08  Sean 'Shaleh' Perry  <shaleh@debian.org>
 
 	* cleaned up some of the auto{make,conf} magic for non-Linux 

@@ -20,6 +20,7 @@ AC_ARG_ENABLE(pam,
 
 dnl Check for headers
 AC_HEADER_STDC
+AM_C_PROTOTYPES
 AC_CHECK_HEADERS(malloc.h stdlib.h stdio.h errno.h unistd.h\
 		 paths.h sys/file.h syslog.h shadow.h)
 AC_CHECK_HEADERS(string.h strings.h, break)

+.TH ANSI2KNR 1 "19 Jan 1996"
+.SH NAME
+ansi2knr \- convert ANSI C to Kernighan & Ritchie C
+.SH SYNOPSIS
+.I ansi2knr
+[--varargs] input_file [output_file]
+.SH DESCRIPTION
+If no output_file is supplied, output goes to stdout.
+.br
+There are no error messages.
+.sp
+.I ansi2knr
+recognizes function definitions by seeing a non-keyword identifier at the left
+margin, followed by a left parenthesis, with a right parenthesis as the last
+character on the line, and with a left brace as the first token on the
+following line (ignoring possible intervening comments).  It will recognize a
+multi-line header provided that no intervening line ends with a left or right
+brace or a semicolon.  These algorithms ignore whitespace and comments, except
+that the function name must be the first thing on the line.
+.sp
+The following constructs will confuse it:
+.br
+     - Any other construct that starts at the left margin and follows the
+above syntax (such as a macro or function call).
+.br
+     - Some macros that tinker with the syntax of the function header.
+.sp
+The --varargs switch is obsolete, and is recognized only for
+backwards compatibility.  The present version of
+.I ansi2knr
+will always attempt to convert a ... argument to va_alist and va_dcl.
+.SH AUTHOR
+L. Peter Deutsch <ghost@aladdin.com> wrote the original ansi2knr and
+continues to maintain the current version; most of the code in the current
+version is his work.  ansi2knr also includes contributions by Francois
+Pinard <pinard@iro.umontreal.ca> and Jim Avera <jima@netcom.com>.

 # Use automake to process this file -*-Makefile-*-
 
+AUTOMAKE_OPTIONS = ../lib/ansi2knr
+
 CFLAGS = -Wall -pedantic -g -DTESTING
 
 include_HEADERS = mailbox.h