#define GCC_VERSION (__GNUC__ * 1000 + __GNUC_MINOR__)
#endif /* GCC_VERSION */
-#if defined (__STDC__) || defined(__cplusplus) || defined (_AIX) || (defined (__mips) && defined (_SYSTYPE_SVR4)) || defined(_WIN32)
/* All known AIX compilers implement these things (but don't always
define __STDC__). The RISC/OS MIPS compiler defines these things
in SVR4 mode, but does not define __STDC__. */
/* inline requires special treatment; it's in C99, and GCC >=2.7 supports
it too, but it's not in C89. */
#undef inline
-#if __STDC_VERSION__ >= 199901L || defined(__cplusplus) || (defined(__SUNPRO_C) && defined(__C99FEATURES__))
+#if (!defined(__cplusplus) && __STDC_VERSION__ >= 199901L) || defined(__cplusplus) || (defined(__SUNPRO_C) && defined(__C99FEATURES__))
/* it's a keyword */
#else
# if GCC_VERSION >= 2007
# endif
#endif
-#else /* Not ANSI C. */
-
-#define PTR char *
-
-/* some systems define these in header files for non-ansi mode */
-#undef const
-#undef volatile
-#undef signed
-#undef inline
-#define const
-#define volatile
-#define signed
-#define inline
-
-#endif /* ANSI C. */
-
/* Define macros for some gcc attributes. This permits us to use the
macros freely, and know that they will come into play for the
version of gcc in which they are supported. */
#define ENUM_BITFIELD(TYPE) unsigned int
#endif
-#if __cpp_constexpr >= 200704
+#if defined(__cplusplus) && __cpp_constexpr >= 200704
#define CONSTEXPR constexpr
#else
#define CONSTEXPR
so that most attempts at copy are caught at compile-time. */
-#if __cplusplus >= 201103
+#if defined(__cplusplus) && __cplusplus >= 201103
#define DISABLE_COPY_AND_ASSIGN(TYPE) \
TYPE (const TYPE&) = delete; \
void operator= (const TYPE &) = delete