obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 84 insertions, 0 deletions

diff --git a/gcc/config/i386/xm-djgpp.h b/gcc/config/i386/xm-djgpp.h
new file mode 100644
index 000000000..c3758ea9e
--- /dev/null
+++ b/gcc/config/i386/xm-djgpp.h
@@ -0,0 +1,84 @@
+/* Configuration for GCC for Intel 80386 running DJGPP.
+   Copyright (C) 1988, 1996, 1998, 1999, 2000, 2001, 2004, 2007
+   Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3, or (at your option)
+any later version.
+
+GCC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+/* Use semicolons to separate elements of a path.  */
+#define PATH_SEPARATOR ';'
+
+#define HOST_EXECUTABLE_SUFFIX ".exe"
+
+/* System dependent initialization for collect2
+   to tell system() to act like Unix.  */
+#define COLLECT2_HOST_INITIALIZATION \
+  do { __system_flags |= (__system_allow_multiple_cmds			\
+		          | __system_emulate_chdir); } while (0)
+
+/* Define a version appropriate for DOS.  */
+#undef XREF_FILE_NAME
+#define XREF_FILE_NAME(xref_file, file) \
+  do { \
+    const char xref_ext[] = ".gxref"; \
+    strcpy (xref_file, file); \
+    s = basename (xref_file); \
+    t = strchr (s, '.'); \
+    if (t) \
+      strcpy (t, xref_ext); \
+    else \
+      strcat (xref_file, xref_ext); \
+  } while (0)
+
+#undef GCC_DRIVER_HOST_INITIALIZATION
+#define GCC_DRIVER_HOST_INITIALIZATION \
+  do { \
+    /* If the environment variable DJDIR is not defined, then DJGPP is not \
+       installed correctly and GCC will quickly become confused with the \
+       default prefix settings. Report the problem now so the user doesn't \
+       receive deceptive "file not found" error messages later.  */ \
+    char *djdir = getenv ("DJDIR"); \
+    if (djdir == NULL) \
+      { \
+        /* DJDIR is automatically defined by the DJGPP environment config \
+           file pointed to by the environment variable DJGPP. Examine DJGPP \
+           to try and figure out what's wrong.  */ \
+        char *djgpp = getenv ("DJGPP"); \
+        if (djgpp == NULL) \
+          fatal ("environment variable DJGPP not defined"); \
+        else if (access (djgpp, R_OK) == 0) \
+          fatal ("environment variable DJGPP points to missing file '%s'", \
+                 djgpp); \
+        else \
+          fatal ("environment variable DJGPP points to corrupt file '%s'", \
+                  djgpp); \
+      } \
+  } while (0)
+
+/* Canonicalize paths containing '/dev/env/'; used in prefix.c.
+   _fixpath is a djgpp-specific function to canonicalize a path.
+   "/dev/env/DJDIR" evaluates to "c:/djgpp" if DJDIR is "c:/djgpp" for
+   example.  It removes any trailing '/', so add it back.  */
+/* We cannot free PATH below as it can point to string constant  */
+#define UPDATE_PATH_HOST_CANONICALIZE(PATH) \
+  if (memcmp ((PATH), "/dev/env/", sizeof("/dev/env/") - 1) == 0) \
+    {						\
+      static char fixed_path[FILENAME_MAX + 1];	\
+						\
+      _fixpath ((PATH), fixed_path);		\
+      strcat (fixed_path, "/");			\
+      (PATH) = xstrdup (fixed_path);		\
+    }