113 lines
4.3 KiB
C
113 lines
4.3 KiB
C
/* Configuration for GNU C-compiler for Intel 80386 running DJGPP.
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Copyright (C) 1988, 1996, 1998, 1999, 2000 Free Software Foundation, Inc.
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#define __MSDOS__ 1
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#include "i386/xm-i386.h"
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/* Use semicolons to separate elements of a path. */
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#define PATH_SEPARATOR ';'
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#define EXECUTABLE_SUFFIX ".exe"
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/* Even though we support "/", allow "\" since everybody tests both. */
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#define DIR_SEPARATOR '/'
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#define DIR_SEPARATOR_2 '\\'
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/* Allow test for DOS drive names. */
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#define HAVE_DOS_BASED_FILE_SYSTEM
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/* System dependant initialization for collect2
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to tell system() to act like Unix. */
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#define COLLECT2_HOST_INITIALIZATION \
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do { __system_flags |= (__system_allow_multiple_cmds \
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| __system_emulate_chdir); } while (0)
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/* Define a version appropriate for DOS. */
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#undef XREF_FILE_NAME
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#define XREF_FILE_NAME(xref_file, file) \
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do { \
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const char xref_ext[] = ".gxref"; \
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strcpy (xref_file, file); \
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s = basename (xref_file); \
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t = strchr (s, '.'); \
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if (t) \
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strcpy (t, xref_ext); \
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else \
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strcat (xref_file, xref_ext); \
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} while (0)
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/* Change /dev/env/DJDIR/prefix/dir/ to canonical form so gcc_exec_prefix
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is set properly in 'gcc.c'. It also helps to cut down the number of times
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the value of the DJGPP environment variable 'DJDIR' is evaluated. */
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#undef GCC_DRIVER_HOST_INITIALIZATION
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#define GCC_DRIVER_HOST_INITIALIZATION \
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do { \
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/* If the environment variable DJDIR is not defined, then DJGPP is not \
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installed correctly and GCC will quickly become confused with the \
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default prefix settings. Report the problem now so the user doesn't \
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receive deceptive "file not found" error messages later. */ \
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char *djdir = getenv ("DJDIR"); \
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if (djdir == NULL) \
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{ \
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/* DJDIR is automatically defined by the DJGPP environment config \
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file pointed to by the environment variable DJGPP. Examine DJGPP \
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to try and figure out what's wrong. */ \
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char *djgpp = getenv ("DJGPP"); \
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if (djgpp == NULL) \
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fatal ("Environment variable DJGPP not defined."); \
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else if (access (djgpp, R_OK) == 0) \
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fatal ("Environment variable DJGPP points to missing file '%s'.", \
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djgpp); \
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else \
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fatal ("Environment variable DJGPP points to corrupt file '%s'.", \
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djgpp); \
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} \
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standard_exec_prefix = update_path (standard_exec_prefix, NULL); \
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standard_bindir_prefix = update_path (standard_bindir_prefix, NULL); \
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standard_startfile_prefix = update_path (standard_startfile_prefix, NULL); \
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md_exec_prefix = update_path (md_exec_prefix, NULL); \
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} while (0)
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/* Canonicalize paths containing '/dev/env/', especially those in
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prefix.c. */
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#define UPDATE_PATH_HOST_CANONICALIZE(PATH, KEY) \
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do { \
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if (strncmp (PATH, "/dev/env/", sizeof("/dev/env/") - 1) == 0) \
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{ \
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static char *djdir; \
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static int djdir_len; \
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static char fixed_path[FILENAME_MAX + 1]; \
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char *new_path; \
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/* The default prefixes all use '/dev/env/DJDIR', so optimize \
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for this. All other uses of '/dev/env/' go through \
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libc's canonicalization function. */ \
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_fixpath (PATH, fixed_path); \
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/* _fixpath removes any trailing '/', so add it back. */ \
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strcat (fixed_path, "/"); \
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new_path = xstrdup (fixed_path); \
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PATH = new_path; \
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return PATH; \
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} \
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/* If DIR_SEPARATOR_2 isn't in PATH, nothing more need be done. */ \
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if (strchr (PATH, DIR_SEPARATOR_2) == NULL) \
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return PATH; \
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} while (0)
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