-/*
-Copyright (C) 1999, 2001-2011 Free Software Foundation, Inc.
-
-This file is part of GNU Emacs.
-
-GNU Emacs 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 of the License, or
-(at your option) any later version.
-
-GNU Emacs 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 GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
-
-/* Define symbols to identify the version of Unix this is.
- Define all the symbols that apply correctly. */
-#define USG /* System III, System V, etc */
-#define USG5
-
-/* This symbol should be defined on AIX Version 3 ??????? */
-#ifndef _AIX
-#define _AIX
-#endif
-
-/* SYSTEM_TYPE should indicate the kind of system you are using.
- It sets the Lisp variable system-type. */
-#define SYSTEM_TYPE "aix"
-
-/* In AIX, you allocate a pty by opening /dev/ptc to get the master side.
- To get the name of the slave side, you just ttyname() the master side. */
-#define PTY_ITERATION int c; for (c = 0; !c ; c++)
-#define PTY_NAME_SPRINTF strcpy (pty_name, "/dev/ptc");
-#define PTY_TTY_NAME_SPRINTF strcpy (pty_name, ttyname (fd));
-
-/* Define HAVE_PTYS if the system supports pty devices. */
-#define HAVE_PTYS
-
-/* Define HAVE_SOCKETS if system supports 4.2-compatible sockets. */
-#define HAVE_SOCKETS
-\f
-/* Special items needed to make Emacs run on this system. */
-
-/* AIX doesn't define this. */
-#define unix 1
-
-/* string.h defines rindex as a macro, at least with native cc, so we
- lose declaring char * rindex without this.
- It is just a guess which versions of AIX need this definition. */
-#undef HAVE_STRING_H
-
-/* Perry Smith <pedz@ddivt1.austin.ibm.com> says these are correct. */
-#define SIGNALS_VIA_CHARACTERS
-#define CLASH_DETECTION
-
-/* Perry Smith <pedz@ddivt1.austin.ibm.com> says these are correct. */
-#undef sigmask
-
-#ifndef HAVE_LIBXMU
-/* Unfortunately without libXmu we cannot support EditRes. */
-#define NO_EDITRES
-#endif
-
-/* On AIX Emacs uses the gmalloc.c malloc implementation. But given
- the way this system works, libc functions that return malloced
- memory use the libc malloc implementation. Calling xfree or
- xrealloc on the results of such functions results in a crash.
-
- One solution for this could be to define SYSTEM_MALLOC in configure,
- but that does not currently work on this system.
-
- It is possible to completely override the malloc implementation on
- AIX, but that involves putting the malloc functions in a shared
- library and setting the MALLOCTYPE environment variable to point to
- that shared library.
-
- Emacs currently calls xrealloc on the results of get_current_dir name,
- to avoid a crash just use the Emacs implementation for that function. */
-#define BROKEN_GET_CURRENT_DIR_NAME 1
+/*
+Copyright (C) 1999, 2001-2012 Free Software Foundation, Inc.
+
+This file is part of GNU Emacs.
+
+GNU Emacs 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 of the License, or
+(at your option) any later version.
+
+GNU Emacs 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 GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
+
+/* Define symbols to identify the version of Unix this is.
+ Define all the symbols that apply correctly. */
+#define USG /* System III, System V, etc */
+#define USG5
+
+/* This symbol should be defined on AIX Version 3 ??????? */
+#ifndef _AIX
+#define _AIX
+#endif
+
+\f
+/* Special items needed to make Emacs run on this system. */
+
+/* Perry Smith <pedz@ddivt1.austin.ibm.com> says these are correct. */
+#undef sigmask
+
+#ifndef HAVE_LIBXMU
+/* Unfortunately without libXmu we cannot support EditRes. */
+#define NO_EDITRES
+#endif
+
+/* Conservative garbage collection has not been tested, so for now
+ play it safe and stick with the old-fashioned way of marking. */
+#define GC_MARK_STACK GC_USE_GCPROS_AS_BEFORE