gcc/genmddeps.c

   1 /* genmddeps.c - creates a makefile dependency fragment for the md file.
   2    Copyright (C) 2004-2016 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 "read-md.h"
  23
  24
  25 struct filedep
  26 {
  27   struct filedep *next;
  28   const char *pathname;
  29 };
  30
  31 static struct filedep *deps, **last = &deps;
  32
  33 static void
  34 add_filedep (const char *pathname)
  35 {
  36   struct filedep *n = XNEW (struct filedep);
  37   n->pathname = pathname;
  38   *last = n;
  39   last = &n->next;
  40 }
  41
  42 int
  43 main (int argc, const char **argv)
  44 {
  45   struct filedep *d;
  46
  47   progname = "genmddeps";
  48   include_callback = add_filedep;
  49
  50   noop_reader reader;
  51   if (!reader.read_md_files (argc, argv, NULL))
  52     return FATAL_EXIT_CODE;
  53
  54   *last = NULL;
  55
  56   /* Output a variable containing all of the include files.  */
  57   fputs ("MD_INCLUDES =", stdout);
  58   for (d = deps; d ; d = d->next)
  59     printf (" \\\n\t%s", d->pathname);
  60   putchar ('\n');
  61
  62   /* Output make targets for these includes with empty actions.  This
  63      will guard against make errors when includes are removed.  */
  64   for (d = deps; d ; d = d->next)
  65     printf ("\n%s:\n", d->pathname);
  66
  67   fflush (stdout);
  68   return (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
  69 }