diff --git a/moo/lib/main-mac.c b/moo/lib/main-mac.c
index c6023c7..5a85fba 100644
--- a/moo/lib/main-mac.c
+++ b/moo/lib/main-mac.c
@@ -10,7 +10,7 @@
 #include <ToolUtils.h>
 
 
-static void InitToolBox ()
+static void InitToolBox (void)
 {
 	GrafPtr wmgrPort;
 
@@ -36,3 +36,9 @@ static void InitToolBox ()
 
 	SetPort (wmgrPort);
 }
+
+
+static void EventLoop (void)
+{
+
+}
diff --git a/moo/lib/main.c b/moo/lib/main.c
index 60f39c2..b28ecac 100644
--- a/moo/lib/main.c
+++ b/moo/lib/main.c
@@ -70,6 +70,7 @@
 #	include <time.h>
 #	include <fcntl.h>
 #	include <io.h>
+#	include <errno.h>
 
 	/* fake XPOLLXXX values */
 #	define XPOLLIN  (1 << 0)
@@ -274,6 +275,7 @@ struct xtn_t
 	DWORD tc_overflow;
 	#elif defined(__OS2__)
 	ULONG tc_last;
+	ULONG tc_overflow;
 	#endif
 
 	#if defined(USE_DEVPOLL)