--- /dev/null
+.\" $Id: ansi2knr.1 $
+.TH ANSI2KNR 1 "9 September 1998" \" -*- nroff -*-
+.SH NAME
+ansi2knr \- convert ANSI C to Kernighan & Ritchie C
+.SH SYNOPSIS
+\fBansi2knr\fR [\fB--filename\fR \fIfilename\fR] [\fIinput_file\fR [\fIoutput_file\fR]]
+.br
+.SH DESCRIPTION
+\fB--filename\fR provides the file name for the #line directive in the output,
+overriding \fIinput_file\fR (if present).
+.sp
+If no \fIinput_file\fR is supplied, input is read from stdin.
+.sp
+If no \fIoutput_file\fR is supplied, output goes to stdout.
+.sp
+There are no error messages.
+.sp
+\fBansi2knr\fR
+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+The --varargs switch is obsolete, and is recognized only for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
+\fBansi2knr\fR
+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>.