diff --git a/examples/libevent-client.c b/examples/libevent-client.c
index 92b82135..7c3e0c90 100644
--- a/examples/libevent-client.c
+++ b/examples/libevent-client.c
@@ -22,6 +22,17 @@
  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
+#ifdef __sgi
+#include <string.h>
+#define errx(exitcode, format, args...)                                        \
+  {                                                                            \
+    warnx(format, ##args);                                                     \
+    exit(exitcode);                                                            \
+  }
+#define warnx(format, args...) fprintf(stderr, format "\n", ##args)
+char *strndup(const char *s, size_t size);
+#endif
+
 #ifdef HAVE_CONFIG_H
 #include <config.h>
 #endif /* HAVE_CONFIG_H */
@@ -37,7 +48,9 @@
 #include <netinet/in.h>
 #endif /* HAVE_NETINET_IN_H */
 #include <netinet/tcp.h>
+#ifndef __sgi
 #include <err.h>
+#endif
 #include <signal.h>
 
 #include <openssl/ssl.h>
diff --git a/examples/libevent-server.c b/examples/libevent-server.c
index 381977dd..21b20c3f 100644
--- a/examples/libevent-server.c
+++ b/examples/libevent-server.c
@@ -22,6 +22,16 @@
  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
+#ifdef __sgi
+#define errx(exitcode, format, args...)                                        \
+  {                                                                            \
+    warnx(format, ##args);                                                     \
+    exit(exitcode);                                                            \
+  }
+#define warn(format, args...) warnx(format ": %s", ##args, strerror(errno))
+#define warnx(format, args...) fprintf(stderr, format "\n", ##args)
+#endif
+
 #ifdef HAVE_CONFIG_H
 #include <config.h>
 #endif /* HAVE_CONFIG_H */
@@ -46,7 +56,9 @@
 #include <netinet/in.h>
 #endif /* HAVE_NETINET_IN_H */
 #include <netinet/tcp.h>
+#ifndef __sgi
 #include <err.h>
+#endif
 
 #include <openssl/ssl.h>
 #include <openssl/err.h>
@@ -672,7 +684,7 @@ static void start_listen(struct event_base *evbase, const char *service,
 
   rv = getaddrinfo(NULL, service, &hints, &res);
   if (rv != 0) {
-    errx(1, NULL);
+    errx(1, "Could not resolve server address");
   }
   for (rp = res; rp; rp = rp->ai_next) {
     struct evconnlistener *listener;
diff --git a/src/nghttpd.cc b/src/nghttpd.cc
index 0e7e63c4..e5d7c2e0 100644
--- a/src/nghttpd.cc
+++ b/src/nghttpd.cc
@@ -24,6 +24,10 @@
  */
 #include "nghttp2_config.h"
 
+#ifdef __sgi
+#define daemon _daemonize
+#endif
+
 #ifdef HAVE_UNISTD_H
 #include <unistd.h>
 #endif // HAVE_UNISTD_H
@@ -352,7 +356,11 @@ int main(int argc, char **argv) {
       std::cerr << "-d option must be specified when -D is used." << std::endl;
       exit(EXIT_FAILURE);
     }
+#ifdef __sgi
+    if (daemon(0, 0, 0, 0) == -1) {
+#else
     if (daemon(0, 0) == -1) {
+#endif
       perror("daemon");
       exit(EXIT_FAILURE);
     }