--- src/qmplay2/IPC_Unix.cpp.orig
+++ src/qmplay2/IPC_Unix.cpp
@@ -98,7 +98,7 @@
 
 	if (m_priv->fd > 0)
 	{
-		const u_long on = 1;
+		const unsigned long on = 1;
 		ioctl(m_priv->fd, FIONBIO, &on);
 		m_priv->socketNotifier = new QSocketNotifier(m_priv->fd, QSocketNotifier::Read, this);
 		connect(m_priv->socketNotifier, SIGNAL(activated(int)), this, SLOT(socketReadActive()));