ext: Include SystemC 2.3.1 into gem5

In the past it happened several times that some changes in gem5 broke the
SystemC coupling. Recently Accelera has changed the licence for SystemC
from their own licence to Apache2.0, which is compatible with gem5.
However, SystemC usually relies on the Boost library, but I was able to
exchange the boost calls by c++11 alternatives. The recent SystemC version
is placed into /ext and is integrated into gem5's build system. The goal is
to integrate some SystemC tests for the CI in some following patches.

Change-Id: I4b66ec806b5e3cffc1d7c85d3735ff4fa5b31fd0
Reviewed-on: https://gem5-review.googlesource.com/2240
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>

1 files changed, 66 insertions, 0 deletions

diff --git a/ext/systemc/NOTICE b/ext/systemc/NOTICE
new file mode 100644
index 000000000..b42be393f
--- /dev/null
+++ b/ext/systemc/NOTICE
@@ -0,0 +1,66 @@
+=========================================================================
+==  NOTICE file corresponding to section 4 d of the Apache License,    ==
+==  Version 2.0, in this case for the SystemC Class Library            ==
+==  Proof of Concept implementation                                    ==
+=========================================================================
+ 
+This product includes software developed by Accellera Systems Initiative
+8698 Elk Grove Bldv Suite 1, #114, Elk Grove, CA 95624, USA
+Copyright 2011-2016 Accellera Systems Initiative Inc. (Accellera) 
+All rights reserved.
+
+This product includes software developed by Cadence Design Systems Inc.
+2655 Seely Ave., San Jose, CA, USA
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+
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+
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+Copyright 2011-2016 Universite Pierre et Marie Curie (UPMC) 
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