This is necessary since it triggers a warning in the BOOST version we bundle
and that yields a warning message several dozen times per build. The BOOST
code may be clumsily written, but is correct.
## ---------------------------------------------------------------------
##
-## Copyright (C) 2012 - 2015 by the deal.II authors
+## Copyright (C) 2012 - 2016 by the deal.II authors
##
## This file is part of the deal.II library.
##
#
ENABLE_IF_SUPPORTED(DEAL_II_CXX_FLAGS "-Wno-long-long")
+#
+# Disable Wplacement-new that will trigger a lot of warnings
+# in the BOOST function classes that we include via the
+# BOOST signals classes:
+#
+ENABLE_IF_SUPPORTED(DEAL_II_CXX_FLAGS "-Wno-placement-new")
+
#
# Disable deprecation warnings
#
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