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1 /* Configuration for GCC for Intel 80386 running DJGPP.
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2 Copyright (C) 1988, 1996, 1998, 1999, 2000, 2001, 2004, 2007
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3 Free Software Foundation, Inc.
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4
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5 This file is part of GCC.
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6
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7 GCC is free software; you can redistribute it and/or modify
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8 it under the terms of the GNU General Public License as published by
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9 the Free Software Foundation; either version 3, or (at your option)
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10 any later version.
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11
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12 GCC is distributed in the hope that it will be useful,
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13 but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 GNU General Public License for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with GCC; see the file COPYING3. If not see
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19 <http://www.gnu.org/licenses/>. */
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20
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21 /* Use semicolons to separate elements of a path. */
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22 #define PATH_SEPARATOR ';'
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23
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24 #define HOST_EXECUTABLE_SUFFIX ".exe"
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25
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26 /* System dependent initialization for collect2
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27 to tell system() to act like Unix. */
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28 #define COLLECT2_HOST_INITIALIZATION \
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29 do { __system_flags |= (__system_allow_multiple_cmds \
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30 | __system_emulate_chdir); } while (0)
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31
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32 /* Define a version appropriate for DOS. */
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33 #undef XREF_FILE_NAME
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34 #define XREF_FILE_NAME(xref_file, file) \
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35 do { \
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36 const char xref_ext[] = ".gxref"; \
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37 strcpy (xref_file, file); \
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38 s = basename (xref_file); \
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39 t = strchr (s, '.'); \
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40 if (t) \
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41 strcpy (t, xref_ext); \
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42 else \
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43 strcat (xref_file, xref_ext); \
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44 } while (0)
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45
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46 #undef GCC_DRIVER_HOST_INITIALIZATION
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47 #define GCC_DRIVER_HOST_INITIALIZATION \
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48 do { \
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49 /* If the environment variable DJDIR is not defined, then DJGPP is not \
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50 installed correctly and GCC will quickly become confused with the \
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51 default prefix settings. Report the problem now so the user doesn't \
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52 receive deceptive "file not found" error messages later. */ \
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53 char *djdir = getenv ("DJDIR"); \
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54 if (djdir == NULL) \
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55 { \
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56 /* DJDIR is automatically defined by the DJGPP environment config \
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57 file pointed to by the environment variable DJGPP. Examine DJGPP \
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58 to try and figure out what's wrong. */ \
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59 char *djgpp = getenv ("DJGPP"); \
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60 if (djgpp == NULL) \
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61 fatal ("environment variable DJGPP not defined"); \
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62 else if (access (djgpp, R_OK) == 0) \
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63 fatal ("environment variable DJGPP points to missing file '%s'", \
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64 djgpp); \
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65 else \
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66 fatal ("environment variable DJGPP points to corrupt file '%s'", \
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67 djgpp); \
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68 } \
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69 } while (0)
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70
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71 /* Canonicalize paths containing '/dev/env/'; used in prefix.c.
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72 _fixpath is a djgpp-specific function to canonicalize a path.
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73 "/dev/env/DJDIR" evaluates to "c:/djgpp" if DJDIR is "c:/djgpp" for
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74 example. It removes any trailing '/', so add it back. */
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75 /* We cannot free PATH below as it can point to string constant */
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76 #define UPDATE_PATH_HOST_CANONICALIZE(PATH) \
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77 if (memcmp ((PATH), "/dev/env/", sizeof("/dev/env/") - 1) == 0) \
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78 { \
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79 static char fixed_path[FILENAME_MAX + 1]; \
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80 \
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81 _fixpath ((PATH), fixed_path); \
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82 strcat (fixed_path, "/"); \
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83 (PATH) = xstrdup (fixed_path); \
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84 }
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