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-rw-r--r--py/mkrules.mk8
1 files changed, 6 insertions, 2 deletions
diff --git a/py/mkrules.mk b/py/mkrules.mk
index 2ba57e0eec..b37415e050 100644
--- a/py/mkrules.mk
+++ b/py/mkrules.mk
@@ -102,15 +102,19 @@ $(BUILD)/frozen.c: $(wildcard $(FROZEN_DIR)/*) $(HEADER_BUILD) $(FROZEN_EXTRA_DE
endif
ifneq ($(FROZEN_MPY_DIR),)
+# to build the MicroPython cross compiler
+$(TOP)/mpy-cross/mpy-cross: $(TOP)/py/*.[ch] $(TOP)/mpy-cross/*.[ch] $(TOP)/windows/fmode.c
+ $(Q)$(MAKE) -C $(TOP)/mpy-cross
+
# make a list of all the .py files that need compiling and freezing
FROZEN_MPY_PY_FILES := $(shell find -L $(FROZEN_MPY_DIR) -type f -name '*.py' | $(SED) -e 's=^$(FROZEN_MPY_DIR)/==')
FROZEN_MPY_MPY_FILES := $(addprefix $(BUILD)/frozen_mpy/,$(FROZEN_MPY_PY_FILES:.py=.mpy))
# to build .mpy files from .py files
-$(BUILD)/frozen_mpy/%.mpy: $(FROZEN_MPY_DIR)/%.py
+$(BUILD)/frozen_mpy/%.mpy: $(FROZEN_MPY_DIR)/%.py $(TOP)/mpy-cross/mpy-cross
@$(ECHO) "MPY $<"
$(Q)$(MKDIR) -p $(dir $@)
- $(Q)$(MPY_CROSS) -o $@ -s $(^:$(FROZEN_MPY_DIR)/%=%) $(MPY_CROSS_FLAGS) $^
+ $(Q)$(MPY_CROSS) -o $@ -s $(<:$(FROZEN_MPY_DIR)/%=%) $(MPY_CROSS_FLAGS) $<
# to build frozen_mpy.c from all .mpy files
$(BUILD)/frozen_mpy.c: $(FROZEN_MPY_MPY_FILES) $(BUILD)/genhdr/qstrdefs.generated.h