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1/* Configuration for GCC for Intel 80386 running DJGPP.
2 Copyright (C) 1988-2017 Free Software Foundation, Inc.
3
4This file is part of GCC.
5
6GCC is free software; you can redistribute it and/or modify
7it under the terms of the GNU General Public License as published by
8the Free Software Foundation; either version 3, or (at your option)
9any later version.
10
11GCC is distributed in the hope that it will be useful,
12but WITHOUT ANY WARRANTY; without even the implied warranty of
13MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14GNU General Public License for more details.
15
16You should have received a copy of the GNU General Public License
17along 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/* 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. */
28
29/* Native system include directory */
30#undef NATIVE_SYSTEM_HEADER_DIR
31#define NATIVE_SYSTEM_HEADER_DIR "/dev/env/DJDIR/include/"
32
33/* Search for as.exe and ld.exe in DJGPP's binary directory. */
34#undef MD_EXEC_PREFIX
35#define MD_EXEC_PREFIX "/dev/env/DJDIR/bin/"
36
37/* Standard DJGPP library and startup files */
38#undef STANDARD_STARTFILE_PREFIX_1
39#define STANDARD_STARTFILE_PREFIX_1 "/dev/env/DJDIR/lib/"
40
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/"
45
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
49
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)
55
56/* Define a version appropriate for DOS. */
57#undef XREF_FILE_NAME
58#define XREF_FILE_NAME(xref_file, file) \
59 do { \
60 const char xref_ext[] = ".gxref"; \
61 strcpy (xref_file, file); \
62 s = basename (xref_file); \
63 t = strchr (s, '.'); \
64 if (t) \
65 strcpy (t, xref_ext); \
66 else \
67 strcat (xref_file, xref_ext); \
68 } while (0)
69
70#undef GCC_DRIVER_HOST_INITIALIZATION
71#define GCC_DRIVER_HOST_INITIALIZATION \
72 do { \
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"); \
78 if (djdir == NULL) \
79 { \
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"); \
84 if (djgpp == NULL) \
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'", \
88 djgpp); \
89 else \
90 fatal_error (UNKNOWN_LOCATION, "environment variable DJGPP points to corrupt file '%s'", \
91 djgpp); \
92 } \
93 } while (0)
94
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) \
102 { \
103 static char fixed_path[FILENAME_MAX + 1]; \
104 \
105 _fixpath ((PATH), fixed_path); \
106 strcat (fixed_path, "/"); \
107 (PATH) = xstrdup (fixed_path); \
108 }
109
110#undef MAX_OFILE_ALIGNMENT
111#define MAX_OFILE_ALIGNMENT 128
112
113/* DJGPP versions up to current (2.05) have ftw.h but only ftw() not nftw().
114 Disable use of ftw.h */
115#undef HAVE_FTW_H
116

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