# @HEADER
# ************************************************************************
#
#            TriBITS: Tribal Build, Integrate, and Test System
#                    Copyright 2013 Sandia Corporation
#
# Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
# the U.S. Government retains certain rights in this software.
#
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# @HEADER

include(GlobalSet)
include(AssertDefined)


# @MACRO: prepend_global_set()
#
# Utility macro that prepends arguments to a global variable (reduces
# boiler-plate code and mistakes).
#
# Usage::
#
#   prepend_global_set(<varName> <arg0> <arg1> ...)
#
# The variable ``<varName>`` must exist before calling this function.  To set
# it empty initially use `global_null_set()`_.
#
macro(prepend_global_set VARNAME)
  assert_defined(${VARNAME})
  global_set(${VARNAME} ${ARGN} ${${VARNAME}})
endmacro()