diff --git a/Makefile.libretro b/Makefile.libretro
index e84f9ee..833a3e6 100644
--- a/Makefile.libretro
+++ b/Makefile.libretro
@@ -232,6 +232,7 @@ else ifeq ($(platform), ngc)
 	AR = $(DEVKITPPC)/bin/powerpc-eabi-ar$(EXE_EXT)
 	ENDIANNESS_DEFINES := -DBYTE_ORDER=BIG_ENDIAN
 	PLATFORM_DEFINES := -DGEKKO -DHW_DOL -mrvl -mcpu=750 -meabi -mhard-float -DALT_RENDER
+	PLATFORM_DEFINES += -U__INT32_TYPE__ -U __UINT32_TYPE__ -D__INT32_TYPE__=int
 	STATIC_LINKING = 1
 
 # Nintendo Wii
@@ -240,15 +241,17 @@ else ifeq ($(platform), wii)
 	CC = $(DEVKITPPC)/bin/powerpc-eabi-gcc$(EXE_EXT)
 	AR = $(DEVKITPPC)/bin/powerpc-eabi-ar$(EXE_EXT)
 	PLATFORM_DEFINES := -DGEKKO -DHW_RVL -mrvl -mcpu=750 -meabi -mhard-float -DALT_RENDER
+	PLATFORM_DEFINES += -U__INT32_TYPE__ -U __UINT32_TYPE__ -D__INT32_TYPE__=int
 	ENDIANNESS_DEFINES := -DBYTE_ORDER=BIG_ENDIAN
 	STATIC_LINKING = 1
 
-# Nintendo Wii
+# Nintendo WiiU
 else ifeq ($(platform), wiiu)
 	TARGET := $(TARGET_NAME)_libretro_$(platform).a
 	CC = $(DEVKITPPC)/bin/powerpc-eabi-gcc$(EXE_EXT)
 	AR = $(DEVKITPPC)/bin/powerpc-eabi-ar$(EXE_EXT)
-	PLATFORM_DEFINES := -DGEKKO -DWIIU -DHW_RVL -mrvl -mcpu=750 -meabi -mhard-float -DALT_RENDER -DUSE_DYNAMIC_ALLOC
+	PLATFORM_DEFINES := -DGEKKO -DWIIU -DHW_RVL -mwup -mcpu=750 -meabi -mhard-float -DALT_RENDER -DUSE_DYNAMIC_ALLOC
+	PLATFORM_DEFINES += -U__INT32_TYPE__ -U __UINT32_TYPE__ -D__INT32_TYPE__=int
 	ENDIANNESS_DEFINES := -DBYTE_ORDER=BIG_ENDIAN
 	STATIC_LINKING = 1