CC := gcc -Wall -Wextra -Wpedantic -Werror -Iinclude -g

LIBS :=

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

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

BUILD_DIR ?= build

OUT := $(notdir $(shell pwd))

SRC := $(wildcard src/*.c)
OBJS := $(patsubst src/%.c,$(BUILD_DIR)/%.o,$(SRC))
DEPS := $(wildcard $(BUILD_DIR)/*.d)


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

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


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


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