I was able to build the cocos2d-x 2.2 in arm64 (Xcode 6.1)

[waochidev]

Change1. cocos2d/platform/CCEGLViewProtocol.h

before:

virtual void handleTouchesBegin(int num, int ids[], float xs[], float ys[]);
virtual void handleTouchesMove(int num, int ids[], float xs[], float ys[]);
virtual void handleTouchesEnd(int num, int ids[], float xs[], float ys[]);
virtual void handleTouchesCancel(int num, int ids[], float xs[], float ys[]);
void getSetOfTouchesEndOrCancel(CCSet& set, int num, int ids[], float xs[], float ys[]);

after:

virtual void handleTouchesBegin(int num, intptr_t ids[], float xs[], float ys[]);
virtual void handleTouchesMove(int num, intptr_t ids[], float xs[], float ys[]);
virtual void handleTouchesEnd(int num, intptr_t ids[], float xs[], float ys[]);
virtual void handleTouchesCancel(int num, intptr_t ids[], float xs[], float ys[]);
void getSetOfTouchesEndOrCancel(CCSet& set, int num, intptr_t ids[], float xs[], float ys[]);

Change2. cocos2d/platform/CCEGLViewProtocol.cpp

int id = ids[i]; -> intptr_t id = ids[i];

Change3.cocos2d/platform/ios/EAGLView.mm

before:

(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
    if (isKeyboardShown_)
    {
         [self handleTouchesAfterKeyboardShow];
        return;
    }
    int ids[IOS_MAX_TOUCHES_COUNT] = {0};
    float xs[IOS_MAX_TOUCHES_COUNT] = {0.0f};
    float ys[IOS_MAX_TOUCHES_COUNT] = {0.0f};
    int i = 0;
    for (UITouch *touch in touches) {
         ids[i] = (int)touch;
        xs[i] = [touch locationInView: [touch view]].x * view.contentScaleFactor;;
        ys[i] = [touch locationInView: [touch view]].y * view.contentScaleFactor;;
        ++i;
    }
    cocos2d::CCEGLView::sharedOpenGLView()->handleTouchesBegin(i, ids, xs, ys);
}

after:

(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
    if (isKeyboardShown_)
    {
        [self handleTouchesAfterKeyboardShow];
        return;
    }
    UITouch* ids[IOS_MAX_TOUCHES_COUNT] = {0};
    float xs[IOS_MAX_TOUCHES_COUNT] = {0.0f};
    float ys[IOS_MAX_TOUCHES_COUNT] = {0.0f};
    int i = 0;
    for (UITouch *touch in touches) {
        ids[i] = touch;
        xs[i] = [touch locationInView: [touch view]].x * view.contentScaleFactor;;
        ys[i] = [touch locationInView: [touch view]].y * view.contentScaleFactor;;
        ++i;
    }
    cocos2d::CCEGLView::sharedOpenGLView()->handleTouchesBegin(i, (intptr_t*)ids, xs, ys);
}

in the same way:

(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event
(void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event

Change4. #if defined(__ARM_NEON__) -> #if defined(__ARM_NEON__) && !defined(__arm64__)

cocos2d/kazmath/src/neon_matrix_impl.c
cocos2d/kazmath/src/mat4.c

Change5. I changed libwebsockets,curl and webp to 3.3rc0.

external/libwebsockets/ios/include/libwebsockets.h -> cocos2d-x-3.3rc0/external/websockets/include/ios/libwebsockets.h
cocos2dx/platform/third_party/ios/curl/*.h -> cocos2d-x-3.3rc0/external/curl/include/ios/curl/*.h
cocos2dx/platform/third_party/ios/webp/*.h -> cocos2d-x-3.3rc0/external/webp/include/ios/webp/*.h

external/libwebsockets/ios/lib/libwebsockets.h -> cocos2d-x-3.3rc0/external/websockets/prebuilt/ios/libwebsockets.a
cocos2dx/platform/third_party/ios/libraries/libcurl.a -> cocos2d-x-3.3rc0/external/curl/prebuilt/ios/libcurl.a
cocos2dx/platform/third_party/ios/libraries/libwebp.a -> cocos2d-x-3.3rc0/external/webp/prebuilt/ios/libwebp.a

[robojiannis]

did you also get spidermonkey errors?
scripting/javascript/spidermonkey-ios/include/js/Value.h throws a 'moz-static-assert13' declared as an array with a negative size error at lines 335 & 1227 (moz_static_assert18).

Same semantic issue (moz_static_assert37) at scripting/javascript/spidermonkey-ios/include/jsfriendapi.h line 1351.

Any clues?

[minggo]

Please refer to this thread.
We will release v2.2.6 this Friday. Spidermonkey issue is fixed too.

[walzer]

Officially support in both v2 and v3.