commit - 12ba5e21a1193b98af6ee1e5eb3da838d5c788f1
commit + b45ef13d08286e9dfb77fdad14c845885535f0b7
blob - 43721af75e5fb7c4331fa895ce67714cf7d8aa5b
blob + 03d3867f58c169f7934e4b82c559bdb8a5962bb9
--- compat.h
+++ compat.h
@@ -148,4 +148,67 @@ void		 setproctitle(const char*, ...);
 #define __dead __attribute__((__noreturn__))
 #endif
 
+/*
+ * The following time-related macros from sys/time.h are subject to:
+ * 
+ * Copyright (c) 1982, 1986, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)time.h	8.2 (Berkeley) 7/10/94
+ */
+
+#ifndef HAVE_TIMESPECSUB
+#define	timespecsub(tsp, usp, vsp)					\
+	do {								\
+		(vsp)->tv_sec = (tsp)->tv_sec - (usp)->tv_sec;		\
+		(vsp)->tv_nsec = (tsp)->tv_nsec - (usp)->tv_nsec;	\
+		if ((vsp)->tv_nsec < 0) {				\
+			(vsp)->tv_sec--;				\
+			(vsp)->tv_nsec += 1000000000L;			\
+		}							\
+	} while (0)
+#endif
+
+#ifndef HAVE_TIMERCMP
+#define	timercmp(tvp, uvp, cmp)						\
+	(((tvp)->tv_sec == (uvp)->tv_sec) ?				\
+	    ((tvp)->tv_usec cmp (uvp)->tv_usec) :			\
+	    ((tvp)->tv_sec cmp (uvp)->tv_sec))
+#endif
+
+#ifndef HAVE_TIMEVAL_TO_TIMESPEC
+#define	TIMEVAL_TO_TIMESPEC(tv, ts) do {				\
+	(ts)->tv_sec = (tv)->tv_sec;					\
+	(ts)->tv_nsec = (tv)->tv_usec * 1000;				\
+} while (0)
+#define	TIMESPEC_TO_TIMEVAL(tv, ts) do {				\
+	(tv)->tv_sec = (ts)->tv_sec;					\
+	(tv)->tv_usec = (ts)->tv_nsec / 1000;				\
+} while (0)
+#endif
+
 #endif /* COMPAT_H */
blob - 74a04e4740503352aa7992b55ffe45527e077726
blob + 0b572aff86a4f2ac798228ff343c33117317fea5
--- configure.ac
+++ configure.ac
@@ -72,6 +72,28 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
 	AC_DEFINE([HAVE_QUEUE_H], 1, [QUEUE_H])
 ], AC_MSG_RESULT(no))
 
+AC_CHECK_DECL(timespecsub,
+    [AC_DEFINE([HAVE_TIMESPECSUB], 1, [have timespecsub])], [],
+    [#include <sys/time.h>])
+
+AC_CHECK_DECL(timercmp,
+    [AC_DEFINE([HAVE_TIMERCMP], 1, [have timercmp])], [],
+    [#include <sys/time.h>])
+
+dnl can't be used as r-value.
+AC_MSG_CHECKING([for TIMEVAL_TO_TIMESPEC])
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
+#include <sys/time.h>
+], [
+	struct timeval a = {0, 0};
+	struct timespec b;
+	TIMEVAL_TO_TIMESPEC(&a, &b);
+	return (int)b.tv_sec;
+])], [
+	AC_MSG_RESULT(yes)
+	AC_DEFINE([HAVE_TIMEVAL_TO_TIMESPEC], 1, [have TIMEVAL_TO_TIMESPEC])
+], AC_MSG_RESULT(no))
+
 AC_CHECK_HEADER([endian.h], [AC_DEFINE(HAVE_ENDIAN_H, 1, [have endian.h])], [
 	AC_CHECK_HEADER([sys/endian.h],
 		[AC_DEFINE(HAVE_SYS_ENDIAN_H, 1, [have sys/endian.h])], [