fix building --test-build-rtsig and --test-build-eventport on FreeBSD 7

src/event/modules/ngx_eventport_module.c

diff --git a/src/event/modules/ngx_eventport_module.c b/src/event/modules/ngx_eventport_module.c
index 85cd195..f9a8e88 100644
--- a/src/event/modules/ngx_eventport_module.c
+++ b/src/event/modules/ngx_eventport_module.c
@@ -40,11 +40,6 @@
     void       *portnfy_user;   /* user defined */
 } port_notify_t;
 
-typedef struct itimerspec {     /* definition per POSIX.4 */
-    struct timespec it_interval;/* timer period */
-    struct timespec it_value;   /* timer expiration */
-} itimerspec_t;
-
 int port_create(void)
 {
     return -1;
@@ -106,7 +101,7 @@
 static int            ep = -1;
 static port_event_t  *event_list;
 static ngx_uint_t     nevents;
-static timer_t        event_timer = -1;
+static timer_t        event_timer = (timer_t) -1;
 
 static ngx_str_t      eventport_name = ngx_string("eventport");
 
@@ -237,13 +232,13 @@
 static void
 ngx_eventport_done(ngx_cycle_t *cycle)
 {
-    if (event_timer != -1) {
+    if (event_timer != (timer_t) -1) {
         if (timer_delete(event_timer) == -1) {
             ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
                           "timer_delete() failed");
         }
 
-        event_timer = -1;
+        event_timer = (timer_t) -1;
     }
 
     if (close(ep) == -1) {

src/event/modules/ngx_rtsig_module.c

diff --git a/src/event/modules/ngx_rtsig_module.c b/src/event/modules/ngx_rtsig_module.c
index 761ebe6..c753854 100644
--- a/src/event/modules/ngx_rtsig_module.c
+++ b/src/event/modules/ngx_rtsig_module.c
@@ -12,8 +12,7 @@
 #if (NGX_TEST_BUILD_RTSIG)
 
 #define F_SETSIG       10
-#define SIGRTMIN       33
-#define si_fd          __spare__[0]
+#define si_fd          _reason.__spare__.__spare2__[0]
 #define KERN_RTSIGNR   30
 #define KERN_RTSIGMAX  31