makefile overhaul + .gitignore

.gitignore

@@ -14,4 +14,4 @@ obj
 *.swo
 .vscode
 ext_tester/test
-ext_tester/bin
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+ext_tester/bin/*
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ext_tester/Makefile

 include ../build_params.mk
 
 BIN = test
+SRC_DIR = src
 OBJ_DIR = obj
-SRC= $(wildcard *.c ./**/*.c)
+SRC= $(wildcard $(SRC_DIR)/*.c $(SRC_DIR)/**/*.c)
 _OBJS= $(SRC:.c=.o)
-OBJS = $(patsubst %,$(OBJ_DIR)/%,$(_OBJS))
+OBJS = $(patsubst $(SRC_DIR)/%,$(OBJ_DIR)/%,$(_OBJS))
 OBJDIRS:=$(dir $(OBJECTS))
 
-
 all: $(BIN)
 
-
-$(OBJ_DIR)/%.o: %.c $(OBJ_DIR)
-	$(eval CURRENT_NB=$(shell echo $$(($(CURRENT_NB)+1))))
+$(OBJ_DIR)/%.o:  $(SRC_DIR)/%.c $(OBJ_DIR)
 	@mkdir -p $(dir $@)
 	$(CC) $(CPPFLAGS) -c $< -o $@
 
-
 $(BIN): $(OBJS)
 	@printf "\033[1;33m[Linking]\033[0m \n"
 	$(CC) $^ -o $@ $(LDFLAGS) 
@@ -25,5 +22,10 @@ $(BIN): $(OBJS)
 $(OBJ_DIR):
 	mkdir -p $(OBJ_DIR)
 
+clear:
+	rm -r $(OBJ_DIR)/*
+
+clean: clear $(BIN)
+
 run: $(BIN)
 	./$(BIN)
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