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-rw-r--r--Makefile2
1 files changed, 1 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index 546d30cf1a..280d61a577 100644
--- a/Makefile
+++ b/Makefile
@@ -42,7 +42,7 @@ USE_PROPER_QC:=$(shell erl -noshell -eval 'io:format({module, proper} =:= code:e
endif
#other args: +native +"{hipe,[o3,verbose]}" -Ddebug=true +debug_info +no_strict_record_tests
-ERLC_OPTS=-I $(INCLUDE_DIR) -Wall -v +debug_info $(call boolean_macro,$(USE_SPECS),use_specs) $(call boolean_macro,$(USE_PROPER_QC),use_proper_qc)
+ERLC_OPTS=-I $(INCLUDE_DIR) -Wall +warn_export_vars -v +debug_info $(call boolean_macro,$(USE_SPECS),use_specs) $(call boolean_macro,$(USE_PROPER_QC),use_proper_qc)
ifdef INSTRUMENT_FOR_QC
ERLC_OPTS += -DINSTR_MOD=gm_qc