1114402Sru/* Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
2114402Sru     Written by James Clark (jjc@jclark.com)
3114402Sru
4114402SruThis file is part of groff.
5114402Sru
6114402Srugroff is free software; you can redistribute it and/or modify it under
7114402Sruthe terms of the GNU General Public License as published by the Free
8114402SruSoftware Foundation; either version 2, or (at your option) any later
9114402Sruversion.
10114402Sru
11114402Srugroff is distributed in the hope that it will be useful, but WITHOUT ANY
12114402SruWARRANTY; without even the implied warranty of MERCHANTABILITY or
13114402SruFITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14114402Srufor more details.
15114402Sru
16114402SruYou should have received a copy of the GNU General Public License along
17114402Sruwith groff; see the file COPYING.  If not, write to the Free Software
18151497SruFoundation, 51 Franklin St - Fifth Floor, Boston, MA 02110-1301, USA. */
19114402Sru
20114402Sru#include <string.h>
21114402Sru
22114402Sruextern char *strsave(const char *);
23114402Sru
24114402Sruextern const char *current_filename;
25114402Sruextern int current_lineno;
26114402Sru
27114402Sruvoid change_filename(const char *f)
28114402Sru{
29114402Sru  if (current_filename != 0 && strcmp(current_filename, f) == 0)
30114402Sru    return;
31114402Sru  current_filename = strsave(f);
32114402Sru}
33114402Sru
34114402Sruvoid change_lineno(int ln)
35114402Sru{
36114402Sru  current_lineno = ln;
37114402Sru}
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