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# NDB_REQUIRE_VARIABLE
#
# Check that the variable with given name is defined
#
MACRO(NDB_REQUIRE_VARIABLE variable_name)
  #MESSAGE(STATUS "Checking variable ${variable_name} required by NDB")
  IF("${${variable_name}}" STREQUAL "")
    MESSAGE(FATAL_ERROR "The variable ${variable_name} is required "
                         "to build NDB")
  ENDIF()
ENDMACRO()