respect user flags
remove unnecessary build rules
--- a/Makefile
+++ b/Makefile
@@ -3,9 +3,6 @@
 
 SHELL = /bin/sh
 
-CC = gcc
-CFLAGS = -g -O2
-LDFLAGS = 
 LIBS = 
 DEFS =  
 INSTALL = /usr/bin/install -c
@@ -20,11 +17,6 @@
 SRCS = id3.c
 OBJS = $(SRCS:.c=.o)
 
-.SUFFIXES: .c .o
-
-.c.o:
-	$(CC) $(DEFS) $(CFLAGS) -c $<
-
 all: $(PRODUCT)
 
 $(PRODUCT): $(OBJS)