GCC 4.7 fixes.

src/generateopenvpnkeydialog.cpp

@@ -29,6 +29,7 @@
 #include <tqstring.h>
 
 #include <iostream>
+#include <unistd.h>
 //
 GenerateOpenvpnKeyDialog::GenerateOpenvpnKeyDialog(KVpncConfig *GlobalConfig,TQWidget *parent, const TQString& caption)
 		: KDialogBase( parent, "Import_Cisco_PCF_profile", true, caption,

src/networkinterface.cpp

@@ -33,6 +33,7 @@
 #include <linux/sockios.h>
 #include <linux/if.h>
 #include <sys/ioctl.h>
+#include <unistd.h>
 //END INCLUDES
 
 NetworkInterface::NetworkInterface( KVpncConfig* GlobalConfig,TQApplication *app, TQObject *parent, const char *name ) : TQObject( parent, name )

src/toolinfo.cpp

@@ -22,6 +22,7 @@
 #include <tqfile.h>
 #include <iostream>
 #include <cstdlib>
+#include <unistd.h>
 #include <klocale.h>
 #include <kstandarddirs.h>
 #include <kmessagebox.h>