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make: preserve tool *_EXE env vars across UNSET_AND_MAKE #4159

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make: preserve tool *_EXE env vars across UNSET_AND_MAKE #4159

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make: preserve tool *_EXE env vars across UNSET_AND_MAKE
oharboe Apr 17, 2026
5c190f6
make: also preserve PYTHON_EXE across UNSET_AND_MAKE
oharboe Apr 17, 2026
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2 changes: 1 addition & 1 deletion flow/scripts/variables.mk
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Original file line number Diff line number Diff line change
Expand Up @@ -188,7 +188,7 @@ export RESULTS_V = $(notdir $(sort $(wildcard $(RESULTS_DIR)/*.v)))
export GDS_MERGED_FILE = $(RESULTS_DIR)/6_1_merged.$(STREAM_SYSTEM_EXT)

define get_variables
$(foreach V, $(.VARIABLES),$(if $(filter-out $(1), $(origin $V)), $(if $(filter-out .% %QT_QPA_PLATFORM% KLAYOUT% GENERATE_ABSTRACT_RULE% do-step% do-copy% OPEN_GUI% OPEN_GUI_SHORTCUT% SUB_MAKE% UNSET_VARS% export%, $(V)), $V$ )))
$(foreach V, $(.VARIABLES),$(if $(filter-out $(1), $(origin $V)), $(if $(filter-out .% %QT_QPA_PLATFORM% KLAYOUT% OPENROAD% OPENSTA% PYTHON% YOSYS% GENERATE_ABSTRACT_RULE% do-step% do-copy% OPEN_GUI% OPEN_GUI_SHORTCUT% SUB_MAKE% UNSET_VARS% export%, $(V)), $V$ )))
endef

export UNSET_VARIABLES_NAMES := $(call get_variables,command% line environment% default automatic)
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