Replace Makefile with new version

Makefile

@@ -1,34 +1,31 @@
-LDLIBS := -lscterm -lm -lscscreensaver
+LDLIBS :=
 
 BIN := $(shell basename $$(pwd))
 
 SRCS := $(wildcard *.cpp)
 OBJS := $(SRCS:.cpp=.o)
-DEPS := $(SRCS:.cpp=.d)
+DEPS := $(SRCS:.cpp=.dep)
 
 CXX ?= g++
-RM := /bin/rm -f
 
-CXXFLAGS += -Wshadow -Wall -Wpedantic -Wextra -g -std=c++17
+CXXFLAGS += -Wshadow -Wall -Wpedantic -Wextra -Wno-unused-parameter
+CXXFLAGS += -g3 -std=c++20
 ifeq ($(DEBUG),1)
 	CXXFLAGS += -D DEBUG -O0
 else
 	CXXFLAGS += -D NDEBUG -O3
 endif
 
-.PHONY: all clean
+%.o: %.cpp
+	$(CXX) $(CXXFLAGS) -MMD -MP -MT $@ -MF $*.dep -c $<
 
-all: $(BIN)
+%.dep: ;
 
-$(BIN): $(OBJS) $(DEPS)
+$(BIN): $(OBJS)
 	$(CXX) $(LDFLAGS) -o $(BIN) $(OBJS) $(LDLIBS)
 
-%.o: %.cpp %.d
-	$(CXX) $(CXXFLAGS) -MMD -MP -MT $@ -MF $*.d -c $<
-
--include *.d
-
-%.d: ;
+-include $(DEPS)
 
+.PHONY: clean
 clean:
-	$(RM) $(OBJS) $(DEPS) $(BIN)
+	rm -f $(OBJS) $(DEPS) $(BIN)