diff --git a/Makefile.libretro b/Makefile.libretro
index 6fdb076..34b7b8a 100644
--- a/Makefile.libretro
+++ b/Makefile.libretro
@@ -205,6 +205,7 @@ else ifeq ($(platform), ngc)
 	CC = $(DEVKITPPC)/bin/powerpc-eabi-gcc$(EXE_EXT)
 	AR = $(DEVKITPPC)/bin/powerpc-eabi-ar$(EXE_EXT)
 	PLATFORM_DEFINES := -DGEKKO -DHW_DOL -mrvl -mcpu=750 -meabi -mhard-float
+	PLATFORM_DEFINES += -U__INT32_TYPE__ -U __UINT32_TYPE__ -D__INT32_TYPE__=int
 	ENDIANNESS_DEFINES += -DMSB_FIRST
 	STATIC_LINKING=1
 	EXTERNAL_ZLIB=1
@@ -215,6 +216,7 @@ 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
+	PLATFORM_DEFINES += -U__INT32_TYPE__ -U __UINT32_TYPE__ -D__INT32_TYPE__=int
 	ENDIANNESS_DEFINES += -DMSB_FIRST
 	STATIC_LINKING=1
 	EXTERNAL_ZLIB=1
@@ -224,7 +226,8 @@ 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 -DHW_RVL -mrvl -mcpu=750 -meabi -mhard-float
+	PLATFORM_DEFINES := -DGEKKO -DHW_RVL -mwup -mcpu=750 -meabi -mhard-float
+	PLATFORM_DEFINES += -U__INT32_TYPE__ -U __UINT32_TYPE__ -D__INT32_TYPE__=int
 	ENDIANNESS_DEFINES += -DMSB_FIRST
 	STATIC_LINKING=1
 	EXTERNAL_ZLIB=1