+// defined in rts/RtsStartup.c.
+extern void* __hscore_get_saved_termios(int fd);
+extern void __hscore_set_saved_termios(int fd, void* ts);
+
+INLINE int __hscore_hs_fileno (FILE *f) { return fileno (f); }
+
+INLINE int __hscore_open(char *file, int how, mode_t mode) {
+#ifdef __MINGW32__
+ if ((how & O_WRONLY) || (how & O_RDWR) || (how & O_APPEND))
+ return _sopen(file,how,_SH_DENYRW,mode);
+ else
+ return _sopen(file,how,_SH_DENYWR,mode);
+#else
+ return open(file,how,mode);
+#endif
+}
+
+// These are wrapped because on some OSs (eg. Linux) they are
+// macros which redirect to the 64-bit-off_t versions when large file
+// support is enabled.
+//
+INLINE off_t __hscore_lseek(int fd, off_t off, int whence) {
+ return (lseek(fd,off,whence));
+}
+
+INLINE int __hscore_stat(char *file, struct stat *buf) {
+ return (stat(file,buf));
+}
+
+INLINE int __hscore_fstat(int fd, struct stat *buf) {
+ return (fstat(fd,buf));
+}
+
+// select-related stuff
+
+#if !defined(__MINGW32__)
+INLINE int hsFD_SETSIZE(void) { return FD_SETSIZE; }
+INLINE void hsFD_CLR(int fd, fd_set *fds) { FD_CLR(fd, fds); }
+INLINE int hsFD_ISSET(int fd, fd_set *fds) { return FD_ISSET(fd, fds); }
+INLINE void hsFD_SET(int fd, fd_set *fds) { FD_SET(fd, fds); }
+INLINE HsInt sizeof_fd_set(void) { return sizeof(fd_set); }
+extern void hsFD_ZERO(fd_set *fds);
+#endif
+
+// gettimeofday()-related
+
+#if !defined(__MINGW32__)
+
+INLINE HsInt sizeofTimeVal(void) { return sizeof(struct timeval); }
+
+INLINE HsWord64 getUSecOfDay(void)
+{
+ struct timeval tv;
+ gettimeofday(&tv, (struct timezone *) NULL);
+ // Don't forget to cast *before* doing the arithmetic, otherwise
+ // the arithmetic happens at the type of tv_sec, which is probably
+ // only 'int'.
+ return ((HsWord64)tv.tv_sec * 1000000 + (HsWord64)tv.tv_usec);
+}
+
+INLINE void setTimevalTicks(struct timeval *p, HsWord64 usecs)
+{
+ p->tv_sec = usecs / 1000000;
+ p->tv_usec = usecs % 1000000;
+}
+#endif /* !defined(__MINGW32__) */
+
+// Directory-related
+
+#if defined(__MINGW32__)
+
+/* Make sure we've got the reqd CSIDL_ constants in scope;
+ * w32api header files are lagging a bit in defining the full set.
+ */
+#if !defined(CSIDL_APPDATA)
+#define CSIDL_APPDATA 0x001a
+#endif
+#if !defined(CSIDL_PERSONAL)
+#define CSIDL_PERSONAL 0x0005
+#endif
+#if !defined(CSIDL_PROFILE)
+#define CSIDL_PROFILE 0x0028
+#endif
+#if !defined(CSIDL_WINDOWS)
+#define CSIDL_WINDOWS 0x0024