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makefile
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makefile
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#
# GNUMakefile for EMS-ESP
# (c) 2020 Paul Derbyshire
#
NUMJOBS=${NUMJOBS:-" -j4 "}
MAKEFLAGS+="j "
#----------------------------------------------------------------------
# Project Structure
#----------------------------------------------------------------------
# TARGET is the name of the output
# BUILD is the directory where object files & intermediate files will be placed
# SOURCES is a list of directories containing source code
# INCLUDES is a list of directories containing header files
# LIBRARIES is a list of directories containing libraries, this must be the top level containing include and lib
#----------------------------------------------------------------------
#TARGET := $(notdir $(CURDIR))
TARGET := emsesp
BUILD := build
SOURCES := src lib_standalone lib/uuid-common/src lib/uuid-console/src lib/uuid-log/src src/devices lib/ArduinoJson/src src/test lib/PButton
INCLUDES := lib/ArduinoJson/src lib_standalone lib/uuid-common/src lib/uuid-console/src lib/uuid-log/src lib/uuid-telnet/src lib/uuid-syslog/src src/devices src lib/PButton
LIBRARIES :=
CPPCHECK = cppcheck
CHECKFLAGS = -q --force --std=c++11
#----------------------------------------------------------------------
# Languages Standard
#----------------------------------------------------------------------
C_STANDARD := -std=c11
CXX_STANDARD := -std=c++11
#----------------------------------------------------------------------
# Defined Symbols
#----------------------------------------------------------------------
DEFINES += -DARDUINOJSON_ENABLE_STD_STRING=1 -DARDUINOJSON_ENABLE_ARDUINO_STRING -DEMSESP_DEBUG -DEMSESP_STANDALONE -DEMSESP_TEST
#----------------------------------------------------------------------
# Sources & Files
#----------------------------------------------------------------------
OUTPUT := $(CURDIR)/$(TARGET)
SYMBOLS := $(CURDIR)/$(BUILD)/$(TARGET).out
CSOURCES := $(foreach dir,$(SOURCES),$(wildcard $(dir)/*.c))
CXXSOURCES := $(foreach dir,$(SOURCES),$(wildcard $(dir)/*.cpp))
OBJS := $(patsubst %,$(BUILD)/%.o,$(basename $(CSOURCES)) $(basename $(CXXSOURCES)) )
DEPS := $(patsubst %,$(BUILD)/%.d,$(basename $(CSOURCES)) $(basename $(CXXSOURCES)) )
INCLUDE += $(addprefix -I,$(foreach dir,$(INCLUDES), $(wildcard $(dir))))
INCLUDE += $(addprefix -I,$(foreach dir,$(LIBRARIES),$(wildcard $(dir)/include)))
LDLIBS += $(addprefix -L,$(foreach dir,$(LIBRARIES),$(wildcard $(dir)/lib)))
#----------------------------------------------------------------------
# Compiler & Linker
#----------------------------------------------------------------------
CC := /usr/bin/gcc
CXX := /usr/bin/g++
#----------------------------------------------------------------------
# Compiler & Linker Flags
#----------------------------------------------------------------------
# CPPFLAGS C and C++ Compiler Flags
# CFLAGS C Compiler Flags
# CXXFLAGS C++ Compiler Flags
# LDFLAGS Linker Flags
#----------------------------------------------------------------------
CPPFLAGS += $(DEFINES) $(INCLUDE)
CPPFLAGS += -ggdb
CPPFLAGS += -g3
CPPFLAGS += -Os
CFLAGS += $(CPPFLAGS)
# CFLAGS += -Wall
# CFLAGS += -Wno-unused -Wno-restrict
# CFLAGS += -Wextra
CXXFLAGS += $(CFLAGS) -MMD
#----------------------------------------------------------------------
# Compiler & Linker Commands
#----------------------------------------------------------------------
# LINK.o link object files to binary
# COMPILE.c compile C source files
# COMPILE.cpp compile C++ source files
#----------------------------------------------------------------------
ifeq ($(strip $(CXXSOURCES)),)
LD := $(CC)
else
LD := $(CXX)
endif
#DEPFLAGS += -MF $(BUILD)/$*.d
LINK.o = $(LD) $(LDFLAGS) $(LDLIBS) $^ -o $@
COMPILE.c = $(CC) $(C_STANDARD) $(CFLAGS) $(DEPFLAGS) -c $< -o $@
COMPILE.cpp = $(CXX) $(CXX_STANDARD) $(CXXFLAGS) $(DEPFLAGS) -c $< -o $@
#----------------------------------------------------------------------
# Special Built-in Target
#----------------------------------------------------------------------
# .SUFFIXES disable built-in wildcard rules
# .INTERMEDIATE make will treat targets as intermediate files, and delete them
# .PRECIOUS make will not be deleted after it is no longer needed. Keep objects to speed up recompilation
# .PHONY make will run this targets unconditionally, regardless of whether a file with that name exists or what its last-modification time is
#----------------------------------------------------------------------
.SUFFIXES:
.INTERMEDIATE:
.PRECIOUS: $(OBJS) $(DEPS)
.PHONY: all clean help
#----------------------------------------------------------------------
# Targets
#----------------------------------------------------------------------
all: $(OUTPUT)
$(OUTPUT): $(OBJS)
@mkdir -p $(@D)
$(LINK.o)
$(SYMBOLS.out)
$(BUILD)/%.o: %.c
@mkdir -p $(@D)
$(COMPILE.c)
$(BUILD)/%.o: %.cpp
@mkdir -p $(@D)
$(COMPILE.cpp)
$(BUILD)/%.o: %.s
@mkdir -p $(@D)
$(COMPILE.s)
cppcheck: $(SOURCES)
$(CPPCHECK) $(CHECKFLAGS) $^
run: $(OUTPUT)
@$<
clean:
@$(RM) -r $(BUILD) $(OUTPUT)
help:
@echo available targets: all run clean
@echo $(OUTPUT)
-include $(DEPS)