Cygwin compilation

[buttim]

I had just one error from the compiler which I eliminated with a simple change to the Makefile (line 17) from:

CXXFLAGS += -I$(BUILD_DIR) -I$(SRC_DIR) -g -std=c++0x

to:

CXXFLAGS += -I$(BUILD_DIR) -I$(SRC_DIR) -g -std=gnu++0x