xref: /dragonfly/contrib/gcc-8.0/gcc/genmddeps.c (revision 16dd80e4)
1 /* genmddeps.c - creates a makefile dependency fragment for the md file.
2    Copyright (C) 2004-2018 Free Software Foundation, Inc.
3 
4    This program is free software; you can redistribute it and/or modify it
5    under the terms of the GNU General Public License as published by the
6    Free Software Foundation; either version 3, or (at your option) any
7    later version.
8 
9    This program is distributed in the hope that it will be useful,
10    but WITHOUT ANY WARRANTY; without even the implied warranty of
11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12    GNU General Public License for more details.
13 
14    You should have received a copy of the GNU General Public License
15    along with this program; see the file COPYING3.  If not see
16    <http://www.gnu.org/licenses/>.  */
17 
18 #include "bconfig.h"
19 #include "system.h"
20 #include "coretypes.h"
21 #include "errors.h"
22 #include "statistics.h"
23 #include "vec.h"
24 #include "read-md.h"
25 
26 
27 struct filedep
28 {
29   struct filedep *next;
30   const char *pathname;
31 };
32 
33 static struct filedep *deps, **last = &deps;
34 
35 static void
36 add_filedep (const char *pathname)
37 {
38   struct filedep *n = XNEW (struct filedep);
39   n->pathname = pathname;
40   *last = n;
41   last = &n->next;
42 }
43 
44 int
45 main (int argc, const char **argv)
46 {
47   struct filedep *d;
48 
49   progname = "genmddeps";
50   include_callback = add_filedep;
51 
52   noop_reader reader;
53   if (!reader.read_md_files (argc, argv, NULL))
54     return FATAL_EXIT_CODE;
55 
56   *last = NULL;
57 
58   /* Output a variable containing all of the include files.  */
59   fputs ("MD_INCLUDES =", stdout);
60   for (d = deps; d ; d = d->next)
61     printf (" \\\n\t%s", d->pathname);
62   putchar ('\n');
63 
64   /* Output make targets for these includes with empty actions.  This
65      will guard against make errors when includes are removed.  */
66   for (d = deps; d ; d = d->next)
67     printf ("\n%s:\n", d->pathname);
68 
69   fflush (stdout);
70   return (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
71 }
72