circuitpython/py/mkenv.mk

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ifneq ($(lastword a b),b)
$(error These Makefiles require make 3.81 or newer)
endif
# Set TOP to be the path to get from the current directory (where make was
# invoked) to the top of the tree. $(lastword $(MAKEFILE_LIST)) returns
# the name of this makefile relative to where make was invoked.
#
# We assume that this file is in the py directory so we use $(dir ) twice
# to get to the top of the tree.
THIS_MAKEFILE := $(lastword $(MAKEFILE_LIST))
TOP := $(patsubst %/py/mkenv.mk,%,$(THIS_MAKEFILE))
# Turn on increased build verbosity by defining BUILD_VERBOSE in your main
# Makefile or in your environment. You can also use V=1 on the make command
# line.
ifeq ("$(origin V)", "command line")
BUILD_VERBOSE=$(V)
endif
ifndef BUILD_VERBOSE
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$(info Use make V=1, make V=2 or set BUILD_VERBOSE similarly in your environment to increase build verbosity.)
BUILD_VERBOSE = 0
endif
ifeq ($(BUILD_VERBOSE),0)
Q = @
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STEPECHO = @:
else ifeq ($(BUILD_VERBOSE),1)
Q = @
STEPECHO = @echo
else
Q =
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STEPECHO = @echo
endif
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# default settings; can be overridden in main Makefile
PY_SRC ?= $(TOP)/py
BUILD ?= build
ECHO = @echo
CAT = cat
CD = cd
CP = cp
FIND = find
MKDIR = mkdir
PYTHON = python
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# Set default python interpreters
PYTHON2 ?= $(which python2 || which python2.7)
PYTHON3 ?= python3
RM = rm
RSYNC = rsync
SED = sed
TOUCH = touch
# Linux has 'nproc', macOS has 'sysctl -n hw.logicalcpu', this is cross-platform
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NPROC = $(PYTHON3) -c 'import multiprocessing as mp; print(mp.cpu_count())'
AS = $(CROSS_COMPILE)as
CC = $(CROSS_COMPILE)gcc
CXX = $(CROSS_COMPILE)g++
GDB = $(CROSS_COMPILE)gdb
LD = $(CROSS_COMPILE)ld
OBJCOPY = $(CROSS_COMPILE)objcopy
SIZE = $(CROSS_COMPILE)size
STRIP = $(CROSS_COMPILE)strip
AR = $(CROSS_COMPILE)ar
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MAKE_FROZEN = $(PYTHON3) $(TOP)/tools/make-frozen.py
MPY_CROSS = $(TOP)/mpy-cross/mpy-cross
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MPY_TOOL = $(PYTHON3) $(TOP)/tools/mpy-tool.py
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PREPROCESS_FROZEN_MODULES = PYTHONPATH=$(TOP)/tools/python-semver $(TOP)/tools/preprocess_frozen_modules.py
MPY_LIB_DIR = $(TOP)/../micropython-lib
MPY_LIB_DIR = $(TOP)/../micropython-lib
all:
.PHONY: all
.DELETE_ON_ERROR:
MKENV_INCLUDED = 1