#endif
+/*
+ * Endian detection.
+ */
+
+#if defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64)
+#define PIPE_ARCH_LITTLE_ENDIAN
+#elif defined(PIPE_ARCH_PPC) || defined(PIPE_ARCH_PPC_64)
+#define PIPE_ARCH_BIG_ENDIAN
+#else
+#define PIPE_ARCH_UNKNOWN_ENDIAN
+#endif
+
+
/*
* Operating system family.
*
#if defined(__linux__)
#define PIPE_OS_LINUX
+#define PIPE_OS_UNIX
#endif
#if defined(__FreeBSD__)
#define PIPE_OS_BSD
+#define PIPE_OS_UNIX
#endif
#if defined(__sun)
#define PIPE_OS_SOLARIS
+#define PIPE_OS_UNIX
#endif
#if defined(__APPLE__)
#define PIPE_OS_APPLE
+#define PIPE_OS_UNIX
#endif
#if defined(_WIN32) || defined(WIN32)
#define PIPE_OS_WINDOWS
#endif
+#if defined(__HAIKU__)
+#define PIPE_OS_HAIKU
+#define PIPE_OS_UNIX
+#endif
/*
* Subsystem.