revert wonderswan makefile delete

wonderswan/mingw/Makefile

@@ -0,0 +1,56 @@
+CXX = g++
+RM = rm
+CP = cp
+
+MACHINE = $(shell $(CXX) -dumpmachine)
+ifneq (,$(findstring i686,$(MACHINE)))
+	$(error 32 bit build no longer supported)
+else ifneq (,$(findstring x86_64,$(MACHINE)))
+	ARCH = 64
+else
+	$(error Unknown arch)
+endif
+
+CXXFLAGS = -Wall -DLSB_FIRST -I.. -Wno-multichar -O3 -Wzero-as-null-pointer-constant -std=gnu++11 -fomit-frame-pointer -fno-exceptions -flto
+TARGET = bizswan.dll
+
+ifeq (,$(findstring MINGW,$(shell uname)))
+	CXXFLAGS += -fPIC
+endif
+
+LDFLAGS_32 = -static -static-libgcc -static-libstdc++
+LDFLAGS_64 =
+LDFLAGS = -shared $(LDFLAGS_$(ARCH)) $(CXXFLAGS)
+
+DEST_32 = ../../output/dll
+DEST_64 = ../../output/dll
+
+SRCS = \
+	../eeprom.cpp \
+	../gfx.cpp \
+	../interrupt.cpp \
+	../memory.cpp \
+	../newstate.cpp \
+	../rtc.cpp \
+	../sound.cpp \
+	../system.cpp \
+	../tcache.cpp \
+	../v30mz.cpp \
+	../blip/Blip_Buffer.cpp
+
+OBJS = $(SRCS:.cpp=.o)
+
+all: $(TARGET)
+
+%.o: %.cpp
+	$(CXX) -c -o $@ $< $(CXXFLAGS)
+
+$(TARGET) : $(OBJS)
+	$(CXX) -o $@ $(LDFLAGS) $(OBJS)
+
+clean:
+	$(RM) $(OBJS)
+	$(RM) $(TARGET)
+	
+install:
+	$(CP) $(TARGET) $(DEST_$(ARCH))