diff --git a/project/Build.xml b/project/Build.xml
index 846a2b0b3..5f7e9aae6 100644
--- a/project/Build.xml
+++ b/project/Build.xml
@@ -58,6 +58,8 @@
 			
 		</section>
 		
+		<file name="src/system/ios/System.mm" if="ios" />
+
 		<file name="src/app/UpdateEvent.cpp" />
 		<file name="src/graphics/PNG.cpp" />
 		<file name="src/graphics/RenderEvent.cpp" />
diff --git a/project/src/graphics/opengl/OpenGLBindings.cpp b/project/src/graphics/opengl/OpenGLBindings.cpp
index c9c45c2b1..d7d8f6785 100644
--- a/project/src/graphics/opengl/OpenGLBindings.cpp
+++ b/project/src/graphics/opengl/OpenGLBindings.cpp
@@ -1131,7 +1131,7 @@ namespace lime {
 
 	value lime_gl_get_shader_precision_format(value inShader,value inPrec) {
 
-		#ifdef lime_GLES
+		#ifdef LIME_GLES
 
 			int range[2];
 			int precision;
@@ -1519,7 +1519,7 @@ namespace lime {
 
 	value lime_gl_clear_depth(value depth) {
 
-		#ifdef lime_GLES
+		#ifdef LIME_GLES
 			glClearDepthf(val_number(depth));
 		#else
 			glClearDepth(val_number(depth));
@@ -1568,7 +1568,7 @@ namespace lime {
 
 	value lime_gl_depth_range(value inNear, value inFar) {
 
-		#ifdef lime_GLES
+		#ifdef LIME_GLES
 			glDepthRangef(val_number(inNear), val_number(inFar));
 		#else
 			glDepthRange(val_number(inNear), val_number(inFar));
diff --git a/project/src/system/ios/System.mm b/project/src/system/ios/System.mm
new file mode 100644
index 000000000..8fa6a66c2
--- /dev/null
+++ b/project/src/system/ios/System.mm
@@ -0,0 +1,52 @@
+#import <UIKit/UIKit.h>
+#import <string>
+
+namespace lime
+{
+
+FILE *OpenRead(const char *inName)
+{
+	FILE *result = 0;
+
+	if (inName[0]=='/')
+	{
+		result = fopen(inName,"rb");
+	}
+	else
+	{
+		NSString *assetPath = [@"assets" stringByAppendingPathComponent:[NSString stringWithFormat:@"%s", inName]];
+
+		NSString *resourcePath = [[NSBundle mainBundle] resourcePath];
+		NSString *path = [resourcePath stringByAppendingPathComponent:assetPath];
+
+		// search in documents if not in the resource bundle
+		if ( ! [[NSFileManager defaultManager] fileExistsAtPath:path])
+		{
+			NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
+			NSString *documentDir = [paths objectAtIndex:0];
+			path = [documentDir stringByAppendingPathComponent:assetPath];
+		}
+
+		result = fopen([path UTF8String],"rb");
+	}
+
+	return result;
+}
+
+
+FILE *OpenOverwrite(const char *inName)
+{
+	NSString *str = [@"assets" stringByAppendingPathComponent:[NSString stringWithFormat:@"%s", inName]];
+
+	NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
+	NSString *documentDir = [paths objectAtIndex:0];
+	NSString *path = [documentDir stringByAppendingPathComponent:str];
+
+	// create any directories if they don't exist
+	[[NSFileManager defaultManager] createDirectoryAtPath:[path stringByDeletingLastPathComponent] withIntermediateDirectories:YES  attributes:nil error:NULL];
+
+	FILE * result = fopen([path UTF8String],"w");
+	return result;
+}
+
+}