Rework unit tests so test_bitcoin.cpp does not #include them all

src/makefile.osx

@@ -10,6 +10,7 @@ CXX=llvm-g++
 DEPSDIR=/opt/local
 
 INCLUDEPATHS= \
+ -I"$(CURDIR)" \
  -I"$(DEPSDIR)/include" \
  -I"$(DEPSDIR)/include/db48"
 
@@ -112,6 +113,8 @@ obj/nogui/%.o: %.cpp
 bitcoind: $(OBJS:obj/%=obj/nogui/%)
 	$(CXX) $(CFLAGS) -o $@ $(LIBPATHS) $^ $(LIBS)
 
+TESTOBJS := $(patsubst test/%.cpp,obj/test/%.o,$(wildcard test/*.cpp))
+
 obj/test/%.o: test/%.cpp
 	$(CXX) -c $(CFLAGS) -MMD -o $@ $<
 	@cp $(@:%.o=%.d) $(@:%.o=%.P); \
@@ -119,7 +122,7 @@ obj/test/%.o: test/%.cpp
 	      -e '/^$$/ d' -e 's/$$/ :/' < $(@:%.o=%.d) >> $(@:%.o=%.P); \
 	  rm -f $(@:%.o=%.d)
 
-test_bitcoin: obj/test/test_bitcoin.o $(filter-out obj/nogui/init.o,$(OBJS:obj/%=obj/nogui/%))
+test_bitcoin: $(TESTOBJS) $(filter-out obj/nogui/init.o,$(OBJS:obj/%=obj/nogui/%))
 	$(CXX) $(CFLAGS) -o $@ $(LIBPATHS) $^ $(LIBS) $(DEPSDIR)/lib/libboost_unit_test_framework-mt.a
 
 clean: