diff --git a/auto/lib/md5/make b/auto/lib/md5/make
new file mode 100644
index 0000000000..0b4d927736
--- /dev/null
+++ b/auto/lib/md5/make
@@ -0,0 +1,24 @@
+
+echo "$MD5/libmd5.a:"                                    >> $MAKEFILE
+
+case $PLATFORM in
+
+    SunOS:*:i386)
+        echo "	cd $MD5 && \$(MAKE) x86-solaris"         >> $MAKEFILE
+    ;;
+
+    *:i386)
+        echo "	cd $MD5 && \$(MAKE) x86-elf"             >> $MAKEFILE
+    ;;
+
+    *)
+        if [ $CC = gcc ]; then
+            echo "	cd $MD5 && \$(MAKE) gcc"         >> $MAKEFILE
+        else
+            echo "	cd $MD5 && \$(MAKE) cc"          >> $MAKEFILE
+        fi
+    ;;
+
+esac
+
+echo                                                     >> $MAKEFILE
diff --git a/src/event/ngx_event_mutex.c b/src/event/ngx_event_mutex.c
index 9f1868f780..4f83e48652 100644
--- a/src/event/ngx_event_mutex.c
+++ b/src/event/ngx_event_mutex.c
@@ -22,7 +22,7 @@ ngx_int_t ngx_event_mutex_timedlock(ngx_event_mutex_t *m, ngx_msec_t timer,
         m->last = ev;
         ev->next = NULL;
 
-#if (NGX_THREADS)
+#if (NGX_THREADS0)
         ev->light = 1;
 #endif