libf2c/libU77/link_.c

   1 /* Copyright (C) 1995, 1997 Free Software Foundation, Inc.
   2 This file is part of GNU Fortran libU77 library.
   3
   4 This library is free software; you can redistribute it and/or modify it
   5 under the terms of the GNU Library General Public License as published
   6 by the Free Software Foundation; either version 2 of the License, or
   7 (at your option) any later version.
   8
   9 GNU Fortran 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 GNU
  12 Library General Public License for more details.
  13
  14 You should have received a copy of the GNU Library General Public
  15 License along with GNU Fortran; see the file COPYING.LIB.  If
  16 not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17 Boston, MA 02111-1307, USA.  */
  18
  19 #ifdef HAVE_CONFIG_H
  20 #include "config.h"
  21 #endif
  22 #if HAVE_STDLIB_H
  23 #  include <stdlib.h>
  24 #else
  25 #  include <stdio.h>
  26 #endif
  27 #if HAVE_UNISTD_H
  28 #  include <unistd.h>
  29 #endif
  30 #include <errno.h>
  31 #if HAVE_SYS_PARAM_H
  32 #  include <sys/param.h>
  33 #endif
  34 #include <errno.h>              /* for ENOSYS */
  35 #include "f2c.h"
  36
  37 #ifdef KR_headers
  38 void g_char ();
  39
  40 integer G77_link_0 (path1, path2, Lpath1, Lpath2)
  41      char *path1, *path2; ftnlen Lpath1, Lpath2;
  42 #else
  43 void g_char(const char *a, ftnlen alen, char *b);
  44
  45 integer G77_link_0 (const char *path1, const char *path2, const ftnlen Lpath1, const ftnlen Lpath2)
  46 #endif
  47 {
  48 #if defined (HAVE_LINK)
  49   char *buff1, *buff2;
  50   char *bp, *blast;
  51   int i;
  52
  53   buff1 = malloc (Lpath1+1);
  54   if (buff1 == NULL) return -1;
  55   g_char (path1, Lpath1, buff1);
  56   buff2 = malloc (Lpath2+1);
  57   if (buff2 == NULL) return -1;
  58   g_char (path2, Lpath2, buff2);
  59   i = link (buff1, buff2);
  60   free (buff1); free (buff2);
  61   return i ? errno : 0;
  62 #else /* ! HAVE_LINK */
  63   errno = ENOSYS;
  64   return -1;
  65 #endif
  66 }