add -traditional to SRC_CPP_OPTS to silence (harmless)
'unterminated char constant' warnings when processing .pp files.
SRC_CPP_OPTS += -I$(GHC_INCLUDE_DIR)
SRC_CPP_OPTS += ${GhcCppOpts}
+# to avoid complaints about unterminated char constants when processing .pp files.
+SRC_CPP_OPTS += -traditional
ifneq "$(BootingFromHc)" "YES"
prelude/PrimOp.lhs $(odir)/prelude/PrimOp.o: $(PRIMOP_BITS)