Feat: add Makefile

Makefile

@@ -0,0 +1,34 @@
+TARGET := dns-keeper
+SRC_DIR := src
+BUILD_DIR := build
+
+CC := gcc
+CFLAGS := -O2 -Wall -Wextra -ffunction-sections -fdata-sections -flto
+CFLAGS += $(shell pkg-config --cflags libcurl)
+
+ifeq ($(STATIC),1)
+LDFLAGS := -Wl,--gc-sections -Wl,-s -flto -static \
+           $(shell pkg-config --static --libs libcurl) -lcjson -lpthread
+else
+LDFLAGS := -Wl,--gc-sections -Wl,-s -flto \
+           $(shell pkg-config --libs libcurl) -lcjson -lpthread
+endif
+
+SRCS := $(wildcard $(SRC_DIR)/*.c)
+OBJS := $(patsubst $(SRC_DIR)/%.c, $(BUILD_DIR)/%.o, $(SRCS))
+
+.PHONY: all clean
+
+all: $(BUILD_DIR)/$(TARGET)
+
+$(BUILD_DIR)/$(TARGET): $(OBJS)
+        $(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
+
+$(BUILD_DIR)/%.o: $(SRC_DIR)/%.c | $(BUILD_DIR)
+        $(CC) $(CFLAGS) -c $< -o $@
+
+$(BUILD_DIR):
+        mkdir -p $(BUILD_DIR)
+
+clean:
+        rm -rf $(BUILD_DIR)