1 /* Configuration for GCC for Intel 80386 running DJGPP. 2 Copyright (C) 1988-2015 Free Software Foundation, Inc. 3 4 This file is part of GCC. 5 6 GCC is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 3, or (at your option) 9 any later version. 10 11 GCC is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 GNU General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with GCC; see the file COPYING3. If not see 18 <http://www.gnu.org/licenses/>. */ 19 20 /* Use semicolons to separate elements of a path. */ 21 #define PATH_SEPARATOR ';' 22 23 #define HOST_EXECUTABLE_SUFFIX ".exe" 24 25 /* System dependent initialization for collect2 26 to tell system() to act like Unix. */ 27 #define COLLECT2_HOST_INITIALIZATION \ 28 do { __system_flags |= (__system_allow_multiple_cmds \ 29 | __system_emulate_chdir); } while (0) 30 31 /* Define a version appropriate for DOS. */ 32 #undef XREF_FILE_NAME 33 #define XREF_FILE_NAME(xref_file, file) \ 34 do { \ 35 const char xref_ext[] = ".gxref"; \ 36 strcpy (xref_file, file); \ 37 s = basename (xref_file); \ 38 t = strchr (s, '.'); \ 39 if (t) \ 40 strcpy (t, xref_ext); \ 41 else \ 42 strcat (xref_file, xref_ext); \ 43 } while (0) 44 45 #undef GCC_DRIVER_HOST_INITIALIZATION 46 #define GCC_DRIVER_HOST_INITIALIZATION \ 47 do { \ 48 /* If the environment variable DJDIR is not defined, then DJGPP is not \ 49 installed correctly and GCC will quickly become confused with the \ 50 default prefix settings. Report the problem now so the user doesn't \ 51 receive deceptive "file not found" error messages later. */ \ 52 char *djdir = getenv ("DJDIR"); \ 53 if (djdir == NULL) \ 54 { \ 55 /* DJDIR is automatically defined by the DJGPP environment config \ 56 file pointed to by the environment variable DJGPP. Examine DJGPP \ 57 to try and figure out what's wrong. */ \ 58 char *djgpp = getenv ("DJGPP"); \ 59 if (djgpp == NULL) \ 60 fatal ("environment variable DJGPP not defined"); \ 61 else if (access (djgpp, R_OK) == 0) \ 62 fatal ("environment variable DJGPP points to missing file '%s'", \ 63 djgpp); \ 64 else \ 65 fatal ("environment variable DJGPP points to corrupt file '%s'", \ 66 djgpp); \ 67 } \ 68 } while (0) 69 70 /* Canonicalize paths containing '/dev/env/'; used in prefix.c. 71 _fixpath is a djgpp-specific function to canonicalize a path. 72 "/dev/env/DJDIR" evaluates to "c:/djgpp" if DJDIR is "c:/djgpp" for 73 example. It removes any trailing '/', so add it back. */ 74 /* We cannot free PATH below as it can point to string constant */ 75 #define UPDATE_PATH_HOST_CANONICALIZE(PATH) \ 76 if (memcmp ((PATH), "/dev/env/", sizeof("/dev/env/") - 1) == 0) \ 77 { \ 78 static char fixed_path[FILENAME_MAX + 1]; \ 79 \ 80 _fixpath ((PATH), fixed_path); \ 81 strcat (fixed_path, "/"); \ 82 (PATH) = xstrdup (fixed_path); \ 83 } 84