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+/*
+ * Copyright (c) 1994-2009 Red Hat, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its
+ * contributors may be used to endorse or promote products derived from this
+ * software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* Provide support for both ANSI and non-ANSI environments. */
+
+/* Some ANSI environments are "broken" in the sense that __STDC__ cannot be
+ relied upon to have it's intended meaning. Therefore we must use our own
+ concoction: _HAVE_STDC. Always use _HAVE_STDC instead of __STDC__ in newlib
+ sources!
+
+ To get a strict ANSI C environment, define macro __STRICT_ANSI__. This will
+ "comment out" the non-ANSI parts of the ANSI header files (non-ANSI header
+ files aren't affected). */
+
+#ifndef _ANSIDECL_H_
+#define _ANSIDECL_H_
+
+/*#include <newlib.h> */
+/*#include <sys/config.h> */
+
+/*
+ * First try to figure out whether we really are in an ANSI C environment.
+ * This probably needs some work. Perhaps sys/config.h can be
+ * prevailed upon to give us a clue.
+ */
+
+#ifdef __STDC__
+#define _HAVE_STDC
+#endif
+
+#ifdef _HAVE_STDC
+#define _PTR void *
+#define _AND ,
+#define _NOARGS void
+#define _CONST const
+#define _VOLATILE volatile
+#define _SIGNED signed
+#define _DOTS , ...
+#define _VOID void
+#ifdef __CYGWIN__
+#define _EXFUN(name, proto) __cdecl name proto
+#define _EXPARM(name, proto) (* __cdecl name) proto
+#else
+#define _EXFUN(name, proto) name proto
+#define _EXPARM(name, proto) (* name) proto
+#endif
+#define _DEFUN(name, arglist, args) name(args)
+#define _DEFUN_VOID(name) name(_NOARGS)
+#define _CAST_VOID (void)
+#ifndef _LONG_DOUBLE
+#define _LONG_DOUBLE long double
+#endif
+#ifndef _PARAMS
+#define _PARAMS(paramlist) paramlist
+#endif
+#else
+#define _PTR char *
+#define _AND ;
+#define _NOARGS
+#define _CONST
+#define _VOLATILE
+#define _SIGNED
+#define _DOTS
+#define _VOID void
+#define _EXFUN(name, proto) name()
+#define _DEFUN(name, arglist, args) name arglist args;
+#define _DEFUN_VOID(name) name()
+#define _CAST_VOID
+#define _LONG_DOUBLE double
+#ifndef _PARAMS
+#define _PARAMS(paramlist) ()
+#endif
+#endif
+
+/* Support gcc's __attribute__ facility. */
+
+#ifdef __GNUC__
+#define _ATTRIBUTE(attrs) __attribute__ (attrs)
+#else
+#define _ATTRIBUTE(attrs)
+#endif
+
+/* ISO C++. */
+
+#ifdef __cplusplus
+#if !(defined(_BEGIN_STD_C) && defined(_END_STD_C))
+#ifdef _HAVE_STD_CXX
+#define _BEGIN_STD_C namespace std { extern "C" {
+#define _END_STD_C } }
+#else
+#define _BEGIN_STD_C extern "C" {
+#define _END_STD_C }
+#endif
+#endif
+#else
+#define _BEGIN_STD_C
+#define _END_STD_C
+#endif
+
+#endif /* _ANSIDECL_H_ */