# drawing (DXF) to gcode (NGC) converter
# Copyright 2013 Stefan Schuermans <stefan@schuermans.info>
# Copyleft: CC-BY-SA http://creativecommons.org/licenses/by-sa/3.0/

TARGET=dxfngc

SRCS=$(wildcard src/*.cpp)

CFLAGS=-Wall -Wextra -Werror -O3
DEFINES=
INCLUDES=
LDFLAGS=
LIBS=-lm -ldime

CPP=g++
CPPARGS=$(CFLAGS) $(DEFINES) $(INCLUDES)

SRCS_BASE=$(patsubst src/%.cpp,%,$(SRCS))
DEPS=$(addprefix dep/,$(addsuffix .d,$(SRCS_BASE)))
OBJS=$(addprefix obj/,$(addsuffix .o,$(SRCS_BASE)))

.PHONY: all clean
.SECONDARY:
.SUFFIXES:

all: dep/deps $(TARGET)

ifneq ($(MAKECMDGOALS),clean)
  include dep/deps
endif

dep:
	mkdir -p $@

dep/deps: $(DEPS) | dep
	cat /dev/null $^ >$@

dep/%.d: src/%.cpp Makefile | dep
	$(CPP) $(CPPARGS) -M -MT$(patsubst src/%.cpp,obj/%.o,$<) -o $@ $<

obj:
	mkdir -p $@

obj/%.o: src/%.cpp Makefile | obj
	$(CPP) $(CPPARGS) -c -o $@ $<

$(TARGET): $(OBJS)
	$(CPP) $(LDFLAGS) -o $@ $^ $(LIBS)

clean:
	rm -rf dep obj $(TARGET)