cmake HAVE_ERAND48 examples

madlib/archived_madlib src/ports/greenplum/CMakeLists.txt :164 

set_source_files_properties(${MAD_DBAL_SOURCES} PROPERTIES
            COMPILE_FLAGS "-DHAVE_ERAND48 ${ADDITIONAL_GCC_FLAGS}")

madlib/archived_madlib src/ports/hawq/CMakeLists.txt :172 

set_source_files_properties(${MAD_DBAL_SOURCES} PROPERTIES
            COMPILE_FLAGS "-DHAVE_ERAND48 ${ADDITIONAL_GCC_FLAGS}")