fix error handling in 7z lib

 - remove an already existing symlink at extraction, because it uses
   QFile to get the io device and that would be the symlink target
   which was wrong.
 - try to get better 7z error output
 - an error would be now: "There was a problem while performing the
   operation: Error while extracting 'C:\Qt\qtcreator-2.7.0_test.7z':
   Cannot open file: D:/test/qtcreator-2.7.0_test/bin/sqldrivers/qsqlite4.dll
   (Access is denied.)"
 - move setPermissions to the end so read only files are getting the right timestamp

Change-Id: I8881144660296618d443568e6974bf2721328991
Reviewed-by: Niels Weber <niels.weber@digia.com>
Reviewed-by: Karsten Heimrich <karsten.heimrich@digia.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/libs/installer/lib7z_facade.h b/src/libs/installer/lib7z_facade.h
index e61cce6ac..515d63bba 100644
--- a/src/libs/installer/lib7z_facade.h
+++ b/src/libs/installer/lib7z_facade.h
@@ -11,6 +11,7 @@
 #include <QtCore/QString>
 #include <QtCore/QVector>
 #include <QtCore/QVariant>
+#include <QtCore/QReadWriteLock>
 
 #include "Common/MyWindows.h"
 
@@ -23,7 +24,6 @@ template <typename T> class QVector;
 QT_END_NAMESPACE
 
 namespace Lib7z {
-
     class INSTALLER_EXPORT SevenZipException : public std::runtime_error {
     public:
         explicit SevenZipException( const QString& msg ) : std::runtime_error( msg.toStdString() ), m_message( msg ) {}