diff -ru lighttpd-1.4.21.dist/src/server.c lighttpd-1.4.21/src/server.c
--- lighttpd-1.4.21.dist/src/server.c   2009-02-05 16:35:46.000000000 -0500
+++ lighttpd-1.4.21/src/server.c        2009-03-07 09:18:37.691688888 -0500
@@ -76,6 +76,11 @@

 static void sigaction_handler(int sig, siginfo_t *si, void *context) {
        UNUSED(context);
+       struct siginfo_t empty_siginfo;
+       if (!si) {
+               memset(&empty_siginfo, 0, sizeof(empty_siginfo));
+               si = &empty_siginfo;
+       }

        switch (sig) {
        case SIGTERM: