Fix start directory

Makefile

@@ -92,7 +92,7 @@ else ifeq ($(platform), ngc)
 	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_DOL -mrvl -mcpu=750 -meabi -mhard-float
+	CFLAGS += -DGEKKO -DHW_DOL -mrvl -mcpu=750 -meabi -mhard-float
 	HAVE_RZLIB := 1
 	STATIC_LINKING=1
 
@@ -108,7 +108,7 @@ else ifeq ($(platform), wii)
 	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
+	CFLAGS += -DGEKKO -DHW_RVL -mrvl -mcpu=750 -meabi -mhard-float
 	HAVE_RZLIB := 1
 	STATIC_LINKING=1
 
@@ -131,7 +131,7 @@ 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 -mwup -mcpu=750 -meabi -mhard-float
+	CFLAGS += -DGEKKO -DWIIU -DHW_RVL -mwup -mcpu=750 -meabi -mhard-float
 	HAVE_RZLIB := 1
 	STATIC_LINKING=1
 #######################################
@@ -191,6 +191,7 @@ else ifeq ($(platform), vita)
 	CC = arm-vita-eabi-gcc
 	AR = arm-vita-eabi-ar
 	CXXFLAGS += -Wl,-q -Wall -O3
+	CFLAGS += -DVITA=1
 	STATIC_LINKING=1
 # RS90
 else ifeq ($(platform), rs90)

libretro/nukleargui/filebrowser.c

@@ -161,7 +161,13 @@ file_browser_init(struct file_browser *browser)
     {
         /* load files and sub-directory list */
         const char *home = getenv("HOME");
-#ifdef _WIN32
+#if defined(PS2) || defined(_3DS) || defined(SWITCH) // TODO: Fix directory
+    	if (!home) home = "/";
+#elif defined(GEKKO)
+    	if (!home) home = "/sd:";
+#elif defined(VITA)
+	if (!home) home = "/ux0:";
+#elif defined(_WIN32)
         if (!home) home = getenv("USERPROFILE");
 #else
         if (!home) home = getpwuid(getuid())->pw_dir;