checkin makefile

Makefile

@@ -0,0 +1,35 @@
+export CC  = gcc
+export CXX = g++
+export MPICXX = mpicxx
+export LDFLAGS=
+export CFLAGS = -Wall -O3 -msse2  -Wno-unknown-pragmas -fPIC -I../src
+
+BPATH=lib
+# objectives that makes up rabit library
+MPIOBJ= $(BPATH)/engine_mpi.o
+OBJ= $(BPATH)/allreduce_base.o $(BPATH)/allreduce_robust.o $(BPATH)/engine.o
+ALIB= lib/librabit.a lib/librabit_mpi.a
+
+.PHONY: clean all
+
+all: $(ALIB)
+
+$(BPATH)/allreduce_base.o: src/allreduce_base.cc src/*.h
+$(BPATH)/engine.o: src/engine.cc src/*.h
+$(BPATH)/allreduce_robust.o: src/allreduce_robust.cc src/*.h
+$(BPATH)/engine_mpi.o: src/engine_mpi.cc src/*.h
+
+lib/librabit.a: $(OBJ)
+lib/librabit_mpi.a: $(MPIOBJ)
+
+$(OBJ) : 
+	$(CXX) -c $(CFLAGS) -o $@ $(firstword $(filter %.cpp %.c %.cc, $^) )
+
+$(MPIOBJ) : 
+	$(MPICXX) -c $(CFLAGS) -o $@ $(firstword $(filter %.cpp %.c %.cc, $^) )
+
+$(ALIB):
+	ar cr $@ $+
+
+clean:
+	$(RM) $(OBJ) $(MPIOBJ) $(ALIB) $(MPIALIB) *~ src/*~