* common/gdb_vecs.h: Moved here from ./gdb_vecs.h.

* common/gdb_vecs.c: New file, contents from utils.c.
	* common/host-defs.h: New file, contents from defs.h.
	* utils.h: New file, contents from defs.h.
	* defs.h: Move all declarations of objects defined in utils.c
	to utils.h (except QUIT() and related).
	#include "utils.h", "host-defs.h".
	* probe.h (probe_p): Move here from gdb_vecs.h.
	* symfile.c: #include "probe.h" instead of "gdb_vecs.h".
	* utils.c (free_char_ptr_vec): Moved to common/gdb_vecs.c.
	(dirnames_to_char_ptr_vec_append, dirnames_to_char_ptr_vec): Ditto.
	* Makefile.in (SFILES): Add common/gdb_vecs.c.
	(HFILES_NO_SRCDIR): Add common/gdb_vecs.h, common/host-defs.h, utils.h.
	(COMMON_OBS): Add gdb_vecs.o.
	(gdb_vecs.o): New rule.

gdb/common/host-defs.h

@@ -0,0 +1,40 @@
+/* Basic host-specific definitions for GDB.
+   Copyright (C) 1986, 1988-2005, 2007-2012 Free Software Foundation, Inc.
+
+   This file is part of GDB.
+
+   This program 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.
+
+   This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#ifndef HOST_DEFS_H
+#define HOST_DEFS_H
+
+#ifdef __MSDOS__
+# define CANT_FORK
+# define GLOBAL_CURDIR
+# define DIRNAME_SEPARATOR ';'
+#endif
+
+#if !defined (__CYGWIN__) && defined (_WIN32)
+# define DIRNAME_SEPARATOR ';'
+#endif
+
+#ifndef DIRNAME_SEPARATOR
+#define DIRNAME_SEPARATOR ':'
+#endif
+
+#ifndef SLASH_STRING
+#define SLASH_STRING "/"
+#endif
+
+#endif /* HOST_DEFS_H */