* binary-io.h: New file, imported from gnulib, but don't

#include <fcntl.h> or <stdio.h>.

include/ChangeLog

@@ -1,3 +1,8 @@
+2008-08-25  Alan Modra  <amodra@bigpond.net.au>
+
+	* binary-io.h: New file, imported from gnulib, but don't
+	#include <fcntl.h> or <stdio.h>.
+
 2008-08-17  Alan Modra  <amodra@bigpond.net.au>
 
 	* bfdlink.h (bfd_generic_link_read_symbols): Declare.

include/binary-io.h

@@ -0,0 +1,62 @@
+/* Binary mode I/O.
+   Copyright (C) 2001, 2003, 2005, 2008 Free Software Foundation, Inc.
+
+   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 _BINARY_H
+#define _BINARY_H
+
+/* Include this header after <fcntl.h> and <stdio.h>, because
+   systems that distinguish between text and binary I/O usually
+   define O_BINARY in <fcntl.h>, and the MSVC7 <stdio.h> doesn't
+   like to be included after '#define fileno ...'
+
+   We don't include <fcntl.h> here because not all systems have
+   that header.  */
+
+#if !defined O_BINARY && defined _O_BINARY
+  /* For MSC-compatible compilers.  */
+# define O_BINARY _O_BINARY
+# define O_TEXT _O_TEXT
+#endif
+#ifdef __BEOS__
+  /* BeOS 5 has O_BINARY and O_TEXT, but they have no effect.  */
+# undef O_BINARY
+# undef O_TEXT
+#endif
+#if O_BINARY
+# if defined __EMX__ || defined __DJGPP__ || defined __CYGWIN__
+#  include <io.h> /* declares setmode() */
+# else
+#  define setmode _setmode
+#  undef fileno
+#  define fileno _fileno
+# endif
+# ifdef __DJGPP__
+#  include <unistd.h> /* declares isatty() */
+#  /* Avoid putting stdin/stdout in binary mode if it is connected to the
+#     console, because that would make it impossible for the user to
+#     interrupt the program through Ctrl-C or Ctrl-Break.  */
+#  define SET_BINARY(fd) (!isatty (fd) ? (setmode (fd, O_BINARY), 0) : 0)
+# else
+#  define SET_BINARY(fd) setmode (fd, O_BINARY)
+# endif
+#else
+  /* On reasonable systems, binary I/O is the default.  */
+# undef O_BINARY
+# define O_BINARY 0
+# define SET_BINARY(fd) /* nothing */
+#endif
+
+#endif /* _BINARY_H */