CC := gcc -Wall -Wextra -Wpedantic -Iinclude -Isrc -g -std=c11

# pkg-config
# LIBS :=
# LDFLAGS := $(LDFLAGS) $(shell pkg-config --libs $(LIBS))
# CFLAGS := $(CFLAGS) $(shell pkg-config --cflags $(LIBS))

CFLAGS := $(CFLAGS) -D_POSIX_C_SOURCE=200809L

OUT := test-ext-in test-ext-out test-iftun tunnel64d

SRC := $(wildcard src/*.c)
TEST := $(wildcard test/*.c)
OBJS := $(patsubst src/%.c,build/%.o,$(SRC))
TEST_OBJS := $(patsubst test/%.c,build/test-%.o,$(TEST))
DEPS := $(wildcard build/*.d)


.PHONY: all
all: test-ext-in test-ext-out test-iftun tunnel64d

$(OUT):
	$(CC) $(LDFLAGS) -o $@ $^

test-ext-in: build/test-ext-in.o build/extremite.o build/iftun.o
test-ext-out: build/test-ext-out.o build/extremite.o build/iftun.o
test-iftun: build/test-iftun.o build/iftun.o

tunnel64d: build/tunnel64d.o build/extremite.o build/iftun.o

-include $(DEPS)
build/test-%.o: test/%.c
	$(CC) $(CFLAGS) -MP -MD $< -c -o $@
build/%.o: src/%.c
	$(CC) $(CFLAGS) -MP -MD $< -c -o $@


clean:
	-rm -f build/*.o
	-rm -f build/*.d
	-rm -f $(OUT)