god-like makefile, thanks Beta

Makefile

#    c
#    ├── Makefile
#    ├── obj
#    └── src
#        ├── lib.c
#        ├── lib.h
#        └── server.c

EXE := doit
SRC := src
OBJ := obj

SOURCES := $(wildcard $(SRC)/*.c)
OBJECTS := $(patsubst $(SRC)/%.c, $(OBJ)/%.o, $(SOURCES))

.PHONY: all clean

all: $(EXE)

$(EXE): $(OBJECTS)
	$(CC) $^ -o $@

$(OBJ)/%.o: $(SRC)/%.c
	$(CC) -I$(SRC) -c $< -o $@

clean: $(EXE) $(OBJECTS)
	rm $^

https://stackoverflow.com/a/40621556/823282 i fucking love you bro