VERSION := $(shell ./versie.sh)

PREFIX ?= /usr

CC := gcc
CFLAGS := -Wall -Wextra -std=c2x
ifeq ($(DEBUG),)
	CFLAGS += -O2
else
	CFLAGS += -Og -g
endif
CFLAGS += -D_GNU_SOURCE -DDRUKKEDOOS_VERSIE=\"$(VERSION)\"
CFLAGS += -Isrc -I.
LDFLAGS := -lm

OBJDIR := obj
TARGET := drukkedoos

SOURCES := $(shell find src -type f -name '*.c')
HEADERS := $(shell find . -type f -name '*.h')
OBJECTS := $(patsubst src/%.c,obj/%.o,$(SOURCES))

PROGNAMES := $(patsubst src/%.c,%,$(wildcard src/*.c))
PROGNAMES_X := $(patsubst %,X(%),$(PROGNAMES))

.PHONY: all clean install

all: $(TARGET)

clean:
	rm -rf $(OBJDIR) $(TARGET)

install: $(TARGET)
	mkdir -p $(PREFIX)/bin
	install $(TARGET) $(PREFIX)/bin/drukkedoos
	for name in $(PROGNAMES); do ln -vfs drukkedoos $(PREFIX)/bin/$$name; done

$(TARGET): main.c $(OBJECTS)
	$(CC) -o $@ $^ $(LDFLAGS) -DPROGNAMES_XLIST="$(PROGNAMES_X)"

$(OBJECTS): obj/%.o: src/%.c $(HEADERS)
	@mkdir -p $(dir $@)
	$(CC) $(CFLAGS) -c -o $@ $<