1 /* Configuration for GCC for Intel 80386 running DJGPP.
2 Copyright (C) 1988-2018 Free Software Foundation, Inc.
4 This file is part of GCC.
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)
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.
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/>. */
20 /* Use semicolons to separate elements of a path. */
21 #define PATH_SEPARATOR ';'
23 #define HOST_EXECUTABLE_SUFFIX ".exe"
25 /* Define standard DJGPP installation paths. */
26 /* We override default /usr or /usr/local part with /dev/env/DJDIR which */
27 /* points to actual DJGPP installation directory. */
29 /* Native system include directory */
30 #undef NATIVE_SYSTEM_HEADER_DIR
31 #define NATIVE_SYSTEM_HEADER_DIR "/dev/env/DJDIR/include/"
33 /* Search for as.exe and ld.exe in DJGPP's binary directory. */
35 #define MD_EXEC_PREFIX "/dev/env/DJDIR/bin/"
37 /* Standard DJGPP library and startup files */
38 #undef STANDARD_STARTFILE_PREFIX_1
39 #define STANDARD_STARTFILE_PREFIX_1 "/dev/env/DJDIR/lib/"
41 /* Define STANDARD_STARTFILE_PREFIX_2 equal to STANDARD_STARTFILE_PREFIX_1
42 to avoid gcc.c redefining it to /usr/lib */
43 #undef STANDARD_STARTFILE_PREFIX_2
44 #define STANDARD_STARTFILE_PREFIX_1 "/dev/env/DJDIR/lib/"
46 /* Make sure that gcc will not look for .h files in /usr/local/include
47 unless user explicitly requests it. */
48 #undef LOCAL_INCLUDE_DIR
50 /* System dependent initialization for collect2
51 to tell system() to act like Unix. */
52 #define COLLECT2_HOST_INITIALIZATION \
53 do { __system_flags |= (__system_allow_multiple_cmds \
54 | __system_emulate_chdir); } while (0)
56 /* Define a version appropriate for DOS. */
58 #define XREF_FILE_NAME(xref_file, file) \
60 const char xref_ext[] = ".gxref"; \
61 strcpy (xref_file, file); \
62 s = basename (xref_file); \
63 t = strchr (s, '.'); \
65 strcpy (t, xref_ext); \
67 strcat (xref_file, xref_ext); \
70 #undef GCC_DRIVER_HOST_INITIALIZATION
71 #define GCC_DRIVER_HOST_INITIALIZATION \
73 /* If the environment variable DJDIR is not defined, then DJGPP is not \
74 installed correctly and GCC will quickly become confused with the \
75 default prefix settings. Report the problem now so the user doesn't \
76 receive deceptive "file not found" error messages later. */ \
77 char *djdir = getenv ("DJDIR"); \
80 /* DJDIR is automatically defined by the DJGPP environment config \
81 file pointed to by the environment variable DJGPP. Examine DJGPP \
82 to try and figure out what's wrong. */ \
83 char *djgpp = getenv ("DJGPP"); \
85 fatal_error (UNKNOWN_LOCATION, "environment variable DJGPP not defined"); \
86 else if (access (djgpp, R_OK) == 0) \
87 fatal_error (UNKNOWN_LOCATION, "environment variable DJGPP points to missing file '%s'", \
90 fatal_error (UNKNOWN_LOCATION, "environment variable DJGPP points to corrupt file '%s'", \
95 /* Canonicalize paths containing '/dev/env/'; used in prefix.c.
96 _fixpath is a djgpp-specific function to canonicalize a path.
97 "/dev/env/DJDIR" evaluates to "c:/djgpp" if DJDIR is "c:/djgpp" for
98 example. It removes any trailing '/', so add it back. */
99 /* We cannot free PATH below as it can point to string constant */
100 #define UPDATE_PATH_HOST_CANONICALIZE(PATH) \
101 if (memcmp ((PATH), "/dev/env/", sizeof("/dev/env/") - 1) == 0) \
103 static char fixed_path[FILENAME_MAX + 1]; \
105 _fixpath ((PATH), fixed_path); \
106 strcat (fixed_path, "/"); \
107 (PATH) = xstrdup (fixed_path); \
110 #undef MAX_OFILE_ALIGNMENT
111 #define MAX_OFILE_ALIGNMENT 128
113 /* DJGPP versions up to current (2.05) have ftw.h but only ftw() not nftw().
114 Disable use of ftw.h */