--- a/configure.in	2012-05-21 14:07:37.000000000 +0000
+++ b/configure.in	2012-06-21 19:46:34.843662509 +0000
@@ -149,6 +149,10 @@
 	AC_MSG_ERROR([Unable to DNS lookup functions "${found_resolv}"])
 fi
 LIBS="${LIBS} ${RESOLV_LIBS}"
+AC_SEARCH_LIBS([res_mkquery], [], [AC_DEFINE([HAVE_RES_MKQUERY], 1, [Define if res_mkquery exists])])
+AC_SEARCH_LIBS([__res_mkquery], [], [AC_DEFINE([HAVE_RES_MKQUERY], 1, [Define if res_mkquery exists])])
+AC_SEARCH_LIBS([res_send], [], [AC_DEFINE([HAVE_RES_SEND], 1, [Define if res_send exists])])
+AC_SEARCH_LIBS([__res_send], [], [AC_DEFINE([HAVE_RES_SEND], 1, [Define if res_send exists])]) 
 
 dnl *****************************************************************
 dnl *                                                               *
--- a/src/libs/zbxsysinfo/common/net.c	2012-06-21 19:49:46.610567432 +0000
+++ b/src/libs/zbxsysinfo/common/net.c	2012-06-21 19:50:35.816628541 +0000
@@ -418,6 +418,7 @@
 #else	/* not _WINDOWS */
 	res_init();	/* initialize always, settings might have changed */
 
+#if defined(HAVE_RES_MKQUERY) && defined(HAVE_RES_SEND) 
 	if (-1 == (res = res_mkquery(QUERY, zone, C_IN, type, NULL, 0, NULL, buf, sizeof(buf))))
 		return SYSINFO_RET_FAIL;
 
@@ -436,6 +437,11 @@
 	_res.retry = retry;
 
 	res = res_send(buf, res, answer.buffer, sizeof(answer.buffer));
+#else /* defined(HAVE_RES_QUERY) && defined(HAVE_RES_SEND) */
+	/* retrand and retry are ignored */
+	if (-1 == (res = res_query(zone, C_IN, type, answer.buffer, sizeof(answer.buffer))))
+	return SYSINFO_RET_FAIL;
+#endif 
 
 	hp = (HEADER *)answer.buffer;