diff -ur passenger-3.0.12.orig/ext/common/EventedMessageServer.h passenger-3.0.12/ext/common/EventedMessageServer.h
--- passenger-3.0.12.orig/ext/common/EventedMessageServer.h	2012-02-03 22:25:43.000000000 +0000
+++ passenger-3.0.12/ext/common/EventedMessageServer.h	2012-04-14 16:13:13.847359596 +0100
@@ -27,6 +27,7 @@
 
 #include <boost/shared_ptr.hpp>
 #include <ev++.h>
+#include <sys/types.h>
 #include <cstdarg>
 #include <cstdlib>
 #ifdef HAS_ALLOCA_H_
diff -ur passenger-3.0.12.orig/ext/common/FileDescriptor.h passenger-3.0.12/ext/common/FileDescriptor.h
--- passenger-3.0.12.orig/ext/common/FileDescriptor.h	2012-04-13 09:09:57.000000000 +0100
+++ passenger-3.0.12/ext/common/FileDescriptor.h	2012-04-14 16:13:29.610319317 +0100
@@ -30,6 +30,7 @@
 #include <oxt/system_calls.hpp>
 
 #include <utility>
+#include <sys/types.h>
 #include <unistd.h>
 #include <cerrno>
 
diff -ur passenger-3.0.12.orig/ext/common/StaticString.h passenger-3.0.12/ext/common/StaticString.h
--- passenger-3.0.12.orig/ext/common/StaticString.h	2012-04-13 09:09:57.000000000 +0100
+++ passenger-3.0.12/ext/common/StaticString.h	2012-04-14 16:12:22.824489975 +0100
@@ -25,6 +25,7 @@
 #ifndef _PASSENGER_STATIC_STRING_H_
 #define _PASSENGER_STATIC_STRING_H_
 
+#include <sys/types.h>
 #include <string>
 #include <cstring>
 #include <cstddef>
diff -ur passenger-3.0.12.orig/ext/common/Utils/BufferedIO.h passenger-3.0.12/ext/common/Utils/BufferedIO.h
--- passenger-3.0.12.orig/ext/common/Utils/BufferedIO.h	2012-02-03 22:25:44.000000000 +0000
+++ passenger-3.0.12/ext/common/Utils/BufferedIO.h	2012-04-14 16:13:45.767278031 +0100
@@ -1,6 +1,7 @@
 #ifndef _PASSENGER_BUFFERED_IO_H_
 #define _PASSENGER_BUFFERED_IO_H_
 
+#include <sys/types.h>
 #include <string>
 #include <utility>
 #include <algorithm>
diff -ur passenger-3.0.12.orig/ext/common/Utils/StreamBoyerMooreHorspool.h passenger-3.0.12/ext/common/Utils/StreamBoyerMooreHorspool.h
--- passenger-3.0.12.orig/ext/common/Utils/StreamBoyerMooreHorspool.h	2012-02-03 22:25:44.000000000 +0000
+++ passenger-3.0.12/ext/common/Utils/StreamBoyerMooreHorspool.h	2012-04-14 16:14:09.153218272 +0100
@@ -190,6 +190,7 @@
 #endif
 
 
+#include <sys/types.h>
 #include <cstddef>
 #include <cstring>
 #include <cassert>