fixed comiplation in Linux (Ubuntu)

line 117: #define _WIN64 1
must be removed in ./compressed_archive/libp7zip/CPP/myWindows/StdAfx.h

"cannot find -lpulse" compiling under Qt 5.0.2 can be fixed creating a symbolic link from libpulse.so.0 to libpulse.so (further research is needed)

common/exit_check.cpp

@@ -0,0 +1,21 @@
+#include "exit_check.h"
+
+#include "yacreader_global.h"
+
+#include <QMessageBox>
+
+using namespace YACReader;
+
+void YACReader::exitCheck(int ret)
+{
+	switch(ret)
+	{
+	case YACReader::SevenZNotFound:
+		QMessageBox::critical(0,QObject::tr("7z lib not found"),QObject::tr("unable to load 7z lib from ./utils"));
+		break;
+	default:
+		break;
+	}
+
+}
+