Add export; before dialyzer is run to see what env vars are set.

Author: lukebakken

erlang.mk

@@ -3321,7 +3321,7 @@ endef
 $(DIALYZER_PLT): deps app
 	$(eval DEPS_LOG := $(shell test -f $(ERLANG_MK_TMP)/deps.log && \
 		while read p; do test -d $$p/ebin && echo $$p/ebin; done <$(ERLANG_MK_TMP)/deps.log))
-	$(verbose) dialyzer --build_plt $(DIALYZER_PLT_OPTS) --apps \
+	$(verbose) export; dialyzer --build_plt $(DIALYZER_PLT_OPTS) --apps \
 		erts kernel stdlib $(PLT_APPS) $(OTP_DEPS) $(LOCAL_DEPS) $(DEPS_LOG) || test $$? -eq 2
 	$(verbose) $(ERL) -eval 'io:format("~n~s~n", [code:lib_dir(erts)]), halt().' >> $@