+#if !defined (HAVE_GMTIME_R) || !defined (HAVE_LOCALTIME_R)
+# include <time.h> /* time_t */
+#endif
+
+#ifndef HAVE_LLDIV
+typedef struct
+{
+ long long quot; /* Quotient. */
+ long long rem; /* Remainder. */
+} lldiv_t;
+#endif
+
+#ifndef HAVE_REWIND
+# include <stdio.h> /* FILE */
+#endif
+
+#if !defined (HAVE_STRLCPY) || \
+ !defined (HAVE_STRNDUP) || \
+ !defined (HAVE_STRNLEN)
+# include <stddef.h> /* size_t */
+#endif
+
+#ifndef HAVE_VASPRINTF
+# include <stdarg.h> /* va_list */
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+