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diff -urp boost_1_54_0-orig/libs/mpi/src/communicator.cpp boost_1_54_0/libs/mpi/src/communicator.cpp
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--- boost_1_54_0-orig/libs/mpi/src/communicator.cpp	2013-07-23 00:48:17.317091987 +0200
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+++ boost_1_54_0/libs/mpi/src/communicator.cpp	2013-07-23 00:50:40.722961078 +0200
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@@ -118,7 +118,6 @@ optional<status> communicator::iprobe(in
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 status communicator::probe(int source, int tag) const
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 {
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-  typedef optional<status> result_type;
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   status stat;
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   BOOST_MPI_CHECK_RESULT(MPI_Probe,