Replace some Makefile commands with variables in py/mkenv.mk

py/mkenv.mk

@@ -39,12 +39,17 @@ BUILD ?= build
 
 RM = rm
 ECHO = @echo
+CP = cp
+MKDIR = mkdir
+SED = sed
+PYTHON = python
 
 AS = $(CROSS_COMPILE)as
 CC = $(CROSS_COMPILE)gcc
 LD = $(CROSS_COMPILE)ld
 OBJCOPY = $(CROSS_COMPILE)objcopy
 SIZE = $(CROSS_COMPILE)size
+STRIP = $(CROSS_COMPILE)strip
 
 all:
 .PHONY: all

py/mkrules.mk

@@ -35,10 +35,10 @@ $(ECHO) "CC $<"
 $(Q)$(CC) $(CFLAGS) -c -MD -o $@ $<
 @# The following fixes the dependency file.
 @# See http://make.paulandlesley.org/autodep.html for details.
-@cp $(@:.o=.d) $(@:.o=.P); \
-  sed -e 's/#.*//' -e 's/^[^:]*: *//' -e 's/ *\\$$//' \
+@$(CP) $(@:.o=.d) $(@:.o=.P); \
+  $(SED) -e 's/#.*//' -e 's/^[^:]*: *//' -e 's/ *\\$$//' \
       -e '/^$$/ d' -e 's/$$/ :/' < $(@:.o=.d) >> $(@:.o=.P); \
-  rm -f $(@:.o=.d)
+  $(RM) -f $(@:.o=.d)
 endef
 
 vpath %.c . $(TOP)
@@ -61,7 +61,7 @@ $(BUILD)/%.pp: %.c
 OBJ_DIRS = $(sort $(dir $(OBJ)))
 $(OBJ): | $(OBJ_DIRS)
 $(OBJ_DIRS):
-	mkdir -p $@
+	$(MKDIR) -p $@
 
 ifneq ($(PROG),)
 # Build a standalone executable (unix and unix-cpy do this)
@@ -72,9 +72,9 @@ $(PROG): $(OBJ)
 	$(ECHO) "LINK $@"
 	$(Q)$(CC) -o $@ $(OBJ) $(LIB) $(LDFLAGS)
 ifndef DEBUG
-	$(Q)strip $(PROG)
+	$(Q)$(STRIP) $(PROG)
 endif
-	$(Q)size $(PROG)
+	$(Q)$(SIZE) $(PROG)
 
 clean: clean-prog
 clean-prog:

py/py.mk

@@ -105,7 +105,7 @@ $(PY_BUILD)/py-version.h: FORCE
 $(PY_BUILD)/qstrdefs.generated.h: | $(PY_BUILD)/
 $(PY_BUILD)/qstrdefs.generated.h: $(PY_QSTR_DEFS) $(QSTR_DEFS) $(PY_SRC)/makeqstrdata.py
 	$(ECHO) "makeqstrdata $(PY_QSTR_DEFS) $(QSTR_DEFS)"
-	$(Q)python $(PY_SRC)/makeqstrdata.py $(PY_QSTR_DEFS) $(QSTR_DEFS) > $@
+	$(Q)$(PYTHON) $(PY_SRC)/makeqstrdata.py $(PY_QSTR_DEFS) $(QSTR_DEFS) > $@
 
 # We don't know which source files actually need the generated.h (since
 # it is #included from str.h). The compiler generated dependencies will cause

stm/Makefile

@@ -174,7 +174,7 @@ all: $(BUILD)/flash.dfu
 
 $(BUILD)/flash.dfu: $(BUILD)/flash0.bin $(BUILD)/flash1.bin
 	$(ECHO) "Create $@"
-	$(Q)python $(DFU) -b 0x08000000:$(BUILD)/flash0.bin -b 0x08020000:$(BUILD)/flash1.bin $@
+	$(Q)$(PYTHON) $(DFU) -b 0x08000000:$(BUILD)/flash0.bin -b 0x08020000:$(BUILD)/flash1.bin $@
 
 $(BUILD)/flash0.bin: $(BUILD)/flash.elf
 	$(Q)$(OBJCOPY) -O binary -j .isr_vector $^ $@
@@ -205,7 +205,7 @@ $(OBJ): | $(BUILD)/pins.h
 # both pins_$(BOARD).c and pins.h
 $(BUILD)/%_$(BOARD).c $(BUILD)/%.h: boards/$(BOARD)/%.csv $(MAKE_PINS) $(AF_FILE) $(PREFIX_FILE)
 	$(ECHO) "Create $@"
-	$(Q)python $(MAKE_PINS) --board $(BOARD_PINS) --af $(AF_FILE) --prefix $(PREFIX_FILE) --hdr $(GEN_PINS_HDR) > $(GEN_PINS_SRC)
+	$(Q)$(PYTHON) $(MAKE_PINS) --board $(BOARD_PINS) --af $(AF_FILE) --prefix $(PREFIX_FILE) --hdr $(GEN_PINS_HDR) > $(GEN_PINS_SRC)
 
 $(BUILD)/pins_$(BOARD).o: $(BUILD)/pins_$(BOARD).c
 	$(call compile_c)

stmhal/Makefile

@@ -189,7 +189,7 @@ all: $(BUILD)/flash.dfu
 
 $(BUILD)/flash.dfu: $(BUILD)/flash0.bin $(BUILD)/flash1.bin
 	$(ECHO) "Create $@"
-	$(Q)python $(DFU) -b 0x08000000:$(BUILD)/flash0.bin -b 0x08020000:$(BUILD)/flash1.bin $@
+	$(Q)$(PYTHON) $(DFU) -b 0x08000000:$(BUILD)/flash0.bin -b 0x08020000:$(BUILD)/flash1.bin $@
 
 $(BUILD)/flash0.bin: $(BUILD)/flash.elf
 	$(Q)$(OBJCOPY) -O binary -j .isr_vector $^ $@
@@ -220,7 +220,7 @@ $(OBJ): | $(BUILD)/pins.h
 # both pins_$(BOARD).c and pins.h
 $(BUILD)/%_$(BOARD).c $(BUILD)/%.h: boards/$(BOARD)/%.csv $(MAKE_PINS) $(AF_FILE) $(PREFIX_FILE)
 	$(ECHO) "Create $@"
-	$(Q)python $(MAKE_PINS) --board $(BOARD_PINS) --af $(AF_FILE) --prefix $(PREFIX_FILE) --hdr $(GEN_PINS_HDR) > $(GEN_PINS_SRC)
+	$(Q)$(PYTHON) $(MAKE_PINS) --board $(BOARD_PINS) --af $(AF_FILE) --prefix $(PREFIX_FILE) --hdr $(GEN_PINS_HDR) > $(GEN_PINS_SRC)
 
 $(BUILD)/pins_$(BOARD).o: $(BUILD)/pins_$(BOARD).c
 	$(call compile_c)