Makefile update

Makefile

@@ -7,7 +7,11 @@ BUILDDIR = bin
 SOURCES = $(wildcard $(SOURCEDIR)/*.cpp)
 OBJECTS = $(patsubst $(SOURCEDIR)/%.cpp,$(BUILDDIR)/%.o,$(SOURCES))
 
-all: $(TARGET)
+all: $(BUILDDIR) $(TARGET)
+
+
+$(BUILDDIR):
+	mkdir -p $(BUILDDIR)
 
 
 $(TARGET): $(OBJECTS)