Makefile

APP = compiler
CXX = g++
FLAGS = -std=c++17 -Wall -I ./src/include -g
SRC_DIR = src
SRC = $(wildcard $(SRC_DIR)/*.cpp)
BIN_DIR = build

EXT = calc
TSTDIR = tests
TESTS = $(wildcard $(TSTDIR)/*.$(EXT))
TESTS := $(TESTS:%.$(EXT)=%)

OBJ := $(SRC:.cpp=.o)
OBJ := $(OBJ:$(SRC_DIR)/%=%)
OBJ := $(addprefix $(BIN_DIR)/,$(OBJ))

.PHONY: all clean test test-clean

all: lexer $(APP) 

$(BIN_DIR): 
	mkdir -p $(BIN_DIR)
$(APP): $(BIN_DIR) $(OBJ) lexer
	$(CXX) $(FLAGS) $(OBJ) build/clexer.o -o $@
$(BIN_DIR)/%.o: $(SRC_DIR)/%.cpp 
	$(CXX) $(FLAGS) -c $< -o $@
clean: test-clean
	rm -rf $(BIN_DIR) $(APP) src/flex/lex.yy.cpp src/flex/clexer.h
test-clean:
	rm -f $(TSTDIR)/*.asm $(TSTDIR)/*.out $(TSTDIR)/*.o $(TESTS)

test: $(TESTS) 
	@for item in $(TESTS); do \
		./$$item > $$item.out; \
		if diff -u ./$$item.test ./$$item.out; then echo "Test $$item is OK"; else echo "Warning!!! Test $$item is failed!!!"; fi \
	done

$(TESTS): % : %.$(EXT) %.test 
	./$(APP) $< $@.asm
	nasm -f elf $@.asm
	ld -melf_i386 $@.o -o $@

lexer: src/flex/1.lex $(BIN_DIR)
	flex --header-file=src/flex/clexer.h -o src/flex/lex.yy.cpp src/flex/1.lex 
	g++ -std=c++17 src/flex/lex.yy.cpp -c -o build/clexer.o

#ld -lc -melf_i386 -dynamic-linker /lib/ld-linux.so.2 $< -o $@