Default Makefile to C++ programs in linux systems

Makefile

.PHONY: clean run
.DEFAULT: build

EXEC_FILE=launcher

CXX=g++

SRC_DIR=./src
BUILD_DIR=./build
SRCS:=$(shell find $(SRC_DIR) -name *.cpp)
OBJS:=$(SRCS:%=$(BUILD_DIR)/%.o)

CPPINCS=	# include paths
CPPLIBS=	# extra libraries

build: $(EXEC_FILE)

$(EXEC_FILE): $(OBJS)
	$(CXX) $(OBJS) -o $@ $(CPPLIBS)

$(BUILD_DIR)/%.cpp.o: %.cpp
	-mkdir -p $(dir $@)
	$(CXX) -c $< -o $@ $(CPPINCS) 

clean:
	-rm $(EXEC_FILE) $(OBJS)

run: build
	./$(EXEC_FILE)