rts_LD_OPTS += $(addprefix -optl, $(MACOSX_DEPLOYMENT_LD_OPTS))
# Otherwise the stack-smash handler gets triggered.
-ifeq "$(TargetOS_CPP)" "openbsd"
+ifneq "$(findstring $(TargetOS_CPP), darwin openbsd)" ""
rts_HC_OPTS += -optc-fno-stack-protector
endif