From b2a4780b17fdac6e14adae2e0136b711ee99d54f Mon Sep 17 00:00:00 2001
From: Jeffrey Pfau <jeffrey@endrift.com>
Date: Mon, 8 Dec 2014 16:04:02 -0800
Subject: [PATCH] 3DS: Get core library building on 3DS

---
 CMakeLists.txt |  3 +++
 src/util/vfs.c | 41 ++++++++++++++++++++++-------------------
 2 files changed, 25 insertions(+), 19 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index c30e77c80..b91ed1c76 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -106,6 +106,9 @@ if(WIN32)
 	list(APPEND OS_LIB ws2_32)
 	file(GLOB OS_SRC ${CMAKE_SOURCE_DIR}/src/platform/windows/*.c)
 	source_group("Windows-specific code" FILES ${OS_SRC})
+elseif(3DS)
+	add_definitions(-D__3DS)
+	list(APPEND OS_LIB ctru)
 else()
 	add_definitions(-DUSE_PTHREADS)
 	list(APPEND OS_LIB pthread)
diff --git a/src/util/vfs.c b/src/util/vfs.c
index b50f610ad..d7ad6a0c8 100644
--- a/src/util/vfs.c
+++ b/src/util/vfs.c
@@ -10,13 +10,15 @@
 #include <fcntl.h>
 #include <dirent.h>
 
-#ifndef _WIN32
-#include <sys/mman.h>
-#define PATH_SEP '/'
-#else
+#ifdef _WIN32
 #include <io.h>
 #include <windows.h>
 #define PATH_SEP '\\'
+#elif defined(__3DS)
+#define PATH_SEP '/'
+#else
+#include <sys/mman.h>
+#define PATH_SEP '/'
 #endif
 
 struct VFileFD {
@@ -114,21 +116,7 @@ ssize_t _vfdWrite(struct VFile* vf, const void* buffer, size_t size) {
 	return write(vfd->fd, buffer, size);
 }
 
-#ifndef _WIN32
-static void* _vfdMap(struct VFile* vf, size_t size, int flags) {
-	struct VFileFD* vfd = (struct VFileFD*) vf;
-	int mmapFlags = MAP_PRIVATE;
-	if (flags & MAP_WRITE) {
-		mmapFlags = MAP_SHARED;
-	}
-	return mmap(0, size, PROT_READ | PROT_WRITE, mmapFlags, vfd->fd, 0);
-}
-
-static void _vfdUnmap(struct VFile* vf, void* memory, size_t size) {
-	UNUSED(vf);
-	munmap(memory, size);
-}
-#else
+#ifdef _WIN32
 static void* _vfdMap(struct VFile* vf, size_t size, int flags) {
 	struct VFileFD* vfd = (struct VFileFD*) vf;
 	int createFlags = PAGE_WRITECOPY;
@@ -154,6 +142,21 @@ static void _vfdUnmap(struct VFile* vf, void* memory, size_t size) {
 	CloseHandle(vfd->hMap);
 	vfd->hMap = 0;
 }
+#elif defined(__3DS)
+#else
+static void* _vfdMap(struct VFile* vf, size_t size, int flags) {
+	struct VFileFD* vfd = (struct VFileFD*) vf;
+	int mmapFlags = MAP_PRIVATE;
+	if (flags & MAP_WRITE) {
+		mmapFlags = MAP_SHARED;
+	}
+	return mmap(0, size, PROT_READ | PROT_WRITE, mmapFlags, vfd->fd, 0);
+}
+
+static void _vfdUnmap(struct VFile* vf, void* memory, size_t size) {
+	UNUSED(vf);
+	munmap(memory, size);
+}
 #endif
 
 static void _vfdTruncate(struct VFile* vf, size_t size) {