*
**************************************************************************/
+#include "no_extern_c.h"
+
#ifndef _C99_COMPAT_H_
#define _C99_COMPAT_H_
* MSVC hacks.
*/
#if defined(_MSC_VER)
+
+# if _MSC_VER < 1900
+# error "Microsoft Visual Studio 2015 or higher required"
+# endif
+
/*
- * Visual Studio 2012 will complain if we define the `inline` keyword, but
+ * Visual Studio will complain if we define the `inline` keyword, but
* actually it only supports the keyword on C++.
*
* To avoid this the _ALLOW_KEYWORD_MACROS must be set.
*/
-# if (_MSC_VER >= 1700) && !defined(_ALLOW_KEYWORD_MACROS)
+# if !defined(_ALLOW_KEYWORD_MACROS)
# define _ALLOW_KEYWORD_MACROS
# endif
/* Intel compiler supports inline keyword */
# elif defined(__WATCOMC__) && (__WATCOMC__ >= 1100)
# define inline __inline
-# elif defined(__SUNPRO_C) && defined(__C99FEATURES__)
- /* C99 supports inline keyword */
# elif (__STDC_VERSION__ >= 199901L)
/* C99 supports inline keyword */
# else
* - http://cellperformance.beyond3d.com/articles/2006/05/demystifying-the-restrict-keyword.html
*/
#ifndef restrict
-# if (__STDC_VERSION__ >= 199901L)
- /* C99 */
-# elif defined(__SUNPRO_C) && defined(__C99FEATURES__)
+# if (__STDC_VERSION__ >= 199901L) && !defined(__cplusplus)
/* C99 */
# elif defined(__GNUC__)
# define restrict __restrict__
#ifndef __func__
# if (__STDC_VERSION__ >= 199901L)
/* C99 */
-# elif defined(__SUNPRO_C) && defined(__C99FEATURES__)
- /* C99 */
# elif defined(__GNUC__)
-# if __GNUC__ >= 2
-# define __func__ __FUNCTION__
-# else
-# define __func__ "<unknown>"
-# endif
+# define __func__ __FUNCTION__
# elif defined(_MSC_VER)
-# if _MSC_VER >= 1300
-# define __func__ __FUNCTION__
-# else
-# define __func__ "<unknown>"
-# endif
+# define __func__ __FUNCTION__
# else
# define __func__ "<unknown>"
# endif
#endif
+/* Fallback definitions, for scons which doesn't auto-detect these things. */
+#ifdef HAVE_SCONS
+
+# ifndef _WIN32
+# define HAVE_PTHREAD
+# define HAVE_POSIX_MEMALIGN
+# endif
+
+# ifdef __GNUC__
+# if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 2)
+# error "GCC version 4.2 or higher required"
+# endif
+
+ /* https://gcc.gnu.org/onlinedocs/gcc-4.2.4/gcc/Other-Builtins.html */
+# define HAVE___BUILTIN_CLZ 1
+# define HAVE___BUILTIN_CLZLL 1
+# define HAVE___BUILTIN_CTZ 1
+# define HAVE___BUILTIN_EXPECT 1
+# define HAVE___BUILTIN_FFS 1
+# define HAVE___BUILTIN_FFSLL 1
+# define HAVE___BUILTIN_POPCOUNT 1
+# define HAVE___BUILTIN_POPCOUNTLL 1
+ /* https://gcc.gnu.org/onlinedocs/gcc-4.2.4/gcc/Function-Attributes.html */
+# define HAVE_FUNC_ATTRIBUTE_FLATTEN 1
+# define HAVE_FUNC_ATTRIBUTE_UNUSED 1
+# define HAVE_FUNC_ATTRIBUTE_FORMAT 1
+# define HAVE_FUNC_ATTRIBUTE_PACKED 1
+# define HAVE_FUNC_ATTRIBUTE_ALIAS 1
+# define HAVE_FUNC_ATTRIBUTE_NORETURN 1
+
+# if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)
+ /* https://gcc.gnu.org/onlinedocs/gcc-4.3.6/gcc/Other-Builtins.html */
+# define HAVE___BUILTIN_BSWAP32 1
+# define HAVE___BUILTIN_BSWAP64 1
+# endif
+
+# if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5)
+# define HAVE___BUILTIN_UNREACHABLE 1
+# endif
+
+# endif /* __GNUC__ */
+
+#endif /* HAVE_SCONS */
+
+
#endif /* _C99_COMPAT_H_ */