Review Board 2.0.15


scons: Enable build on OSX

Review Request #1970 - Created Aug. 19, 2013 and submitted - Latest diff uploaded

Information
Andreas Hansson
gem5
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Reviewers
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Changeset 9839:4f59390d8dfc
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scons: Enable build on OSX

This patch changes the SConscript to build gem5 with libc++ on OSX as
the conventional libstdc++ does not have the C++11 constructs that the
current code base makes use of (e.g. std::forward).

Since this was the last use of the transitional TR1, the unordered map
and set header can now be simplified as well.
Compiled on OSX 10.8.4 using clang