Makefile

CXX        := g++
CXXFLAGS   := -std=c++20 -Iinclude -Wall -Wextra -pthread
SRC_DIR    := src
INCLUDE_DIR:= include
TEST_DIR   := tests
BUILD_DIR  := build

SRCS       := $(wildcard $(SRC_DIR)/*.cpp)
OBJS       := $(patsubst $(SRC_DIR)/%.cpp,$(BUILD_DIR)/%.o,$(SRCS))
TEST_SRCS  := $(wildcard $(TEST_DIR)/test_*.cpp)
TEST_OBJS  := $(patsubst $(TEST_DIR)/%.cpp,$(BUILD_DIR)/%.o,$(TEST_SRCS))
TEST_EXES  := $(patsubst $(TEST_DIR)/%.cpp,$(BUILD_DIR)/%_test,$(TEST_SRCS))

.PHONY: all test clean

all: $(BUILD_DIR) $(OBJS)

$(BUILD_DIR):
	mkdir -p $(BUILD_DIR)

$(BUILD_DIR)/%.o: $(SRC_DIR)/%.cpp
	$(CXX) $(CXXFLAGS) -c $< -o $@

$(BUILD_DIR)/%.o: $(TEST_DIR)/%.cpp
	$(CXX) $(CXXFLAGS) -c $< -o $@

$(BUILD_DIR)/%_test: $(BUILD_DIR)/%.o $(OBJS)
	$(CXX) $(CXXFLAGS) $^ -lgtest -lgtest_main -o $@

test: all $(TEST_EXES)
	@for exe in $(TEST_EXES); do \
		echo "Running $$exe"; \
		./$$exe; \
	done

clean:
	rm -rf $(BUILD_DIR)