# 
# 
# patch "Makefile"
#  from [a13ef387babe147c6732ccbd5a36c41e7673f51c]
#    to [edffc74505c56414719e036daa29b33c12240be2]
# 
============================================================
--- Makefile	a13ef387babe147c6732ccbd5a36c41e7673f51c
+++ Makefile	edffc74505c56414719e036daa29b33c12240be2
@@ -1,13 +1,24 @@
-BPO = -lboost_program_options
+BPO = -lboost_program_options -l boost_regex
 CFLAGS = -Wall -ggdb
 
+PROG= g++ $(CFLAGS) $(BPO) -o $@ $^ $>
+
 all: basic_io-grep basic_io-mangle basic_io-split
 
-basic_io-grep: grep.cc io.cc io.hh
-	g++ -o basic_io-grep grep.cc io.cc $(BPO) -lboost_regex $(CFLAGS)
+.cc.o:
+	g++ -c -o $@ $< $(CFLAGS)
 
-basic_io-mangle: mangle.cc io.cc io.hh
-	g++ -o basic_io-mangle mangle.cc io.cc $(BPO) $(CFLAGS)
+SRCS= *.cc
+OBJS= ${SRCS:.cc=.o}
 
+$(OBJS) : io.hh
+
+clean:
+	rm basic_io* *.o -f
+
+basic_io-grep: grep.o io.o
+	$(PROG)
+basic_io-mangle: mangle.o io.o 
+	$(PROG)
+basic_io-split: split.o io.o
+	$(PROG)
-basic_io-split: split.cc io.cc io.hh
-	g++ -o basic_io-split split.cc io.cc $(BPO) $(CFLAGS)