EXECUTABLE = helloworld-c-make

CFLAGS = -std=c17 -Wall -Wextra -pedantic -pedantic-errors -O2

SOURCE_FILES = \
	src/main.c

OBJECT_FILES = $(patsubst src/%.c, build/%.o, $(SOURCE_FILES))

HEADER_FILES = $(shell find src/ -name *.h)

all: build/$(EXECUTABLE) build/compile_flags.txt

build/$(EXECUTABLE): $(OBJECT_FILES)
	$(CC) -o $@ $(LDFLAGS) $^

build/%.o: src/%.c $(HEADER_FILES) build-folder
	$(CC) -c -o $@ $(CFLAGS) $<

build-folder:
	mkdir -p build/

clean:
	rm -rf build/

build/compile_flags.txt:
	echo -xc $(CFLAGS) \
		| tr ' ' '\n' \
		> $@