Replies: 5 comments 7 replies
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There's also the legal aspect too. You'd need to have a mac anyway to be allowed to use the SDKs... |
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You don't need a Mac to download the SDK. |
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Yeah that repo breaks legal restrictions. If you have a developer license then sure you can download from apple, but then it's likely you have a mac if you do that. |
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if you know the type signatures of the functions you need to call, the symbol names and where the location of the library will be on MacOS, then it's possible to create |
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I'm glad I'm not the only one who is having these issues with webview as bad as this is to say. On the plus side I did find out that zig flags can be much less complicated before running into the missing objc and resolv problem. Mac min version can be specified on the target and isysroot, iwithsysroot, iframeworkwithsysroot for including the SDK plus local system libraries. Here are my docker files for cross compilation: This honestly feels like 100% an Apple issue for not providing the libraries needed in the SDK for cross compilation. I'm also not smart enough to figure out how to inject those into the SDK. It's also too bad WebView2 was never made available for Linux and Mac, but even worse Microsoft never opensourced it either. You can legally download Xcode by creating an Apple account (no device required) then extract the SDK from it. I don't think that breaks ULA, but still objc and resolv issue persists... |
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@figuerom16 my understanding of the Apple Developer TOS, is that you may only use the Apple SDK on Apple hardware. I don't use wails for anything yet but I've definitely worked around the resolve and objc issue for https://graphics.gd (Godot + Go), which cross compiles to MacOS, iOS and Android on any platform (without any proprietary SDKs), leveraging existing binaries for Godot, as well as I have thought about the possibility of using something like |
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@Splizard You are correct. I just read the https://www.apple.com/legal/sla/docs/xcode.pdf agreement and it's in the second paragraph:
That is a diabolical agreement. It looks like the Cocoa (API), CoreGraphics, and WebKit Framework are some things used in the MacOS SDK. So it sounds like it would be a task to reverse engineer all that, but maybe their WebKit only needs bindings also? I'm impressed that you are able to solve the issue for Godot. |
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@Splizard It looks like Neutralino.js might have already done something similar using WKWebView. https://github.com/neutralinojs/neutralinojs/blob/main/lib/webview/webview.h#L393 |
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@figuerom16 have a look at the behind the scenes section of this post Godot uses way more frameworks than you need for a browser view, I'm not cross-compiling Godot though, as Godot already provides release builds for all platforms, so I only need to cross compile the Go code as Taking a quick look at wails, it looks like you would mainly need to provide stubs to make the graphics.gd is also MIT, you can copy the stub SDK from here and use it instead of an Apple one. You probably need to stub some more headers though. If you share the compile-time error you are getting, I can help guide you through the sorts of steps needed to make it work. |
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@Splizard Sorry that took me a while to put the information together, but I see that's brilliant. Right now I'm working with plain WebView so it should be simpler to stub out the files for the WebView framework using your example. Thanks for the guidance! I'll try this over the weekend. At the same time I want to open a ticket with Apple to make a WKWebKit SDK like WebView2 for Windows, but I have a feeling how that's going to go if it already hasn't been done. |
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@jidckii I think I have the magic zig args for cross compiling to Darwin. I haven't tested it with wails yet, but it's working with WebView and squeek dialog which uses Cocoa. Also didn't need to set CGO_CFLAGS, CGO_CXXFLAGS, or CGO_LDFLAGS at all.
You can check out my docker file for the full build. https://gitlab.com/figuerom16/litequack/-/blob/main/docker/darwin |
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Hi!
Has anyone had success with cross-compiling a Wails app from Linux to macOS?
I've tried both Zig and osxcross, and in both cases I eventually run into very similar issues — typically related to missing macOS system libraries like objc or resolv.
zig
Here’s an example using Zig:
This results in the following error:
osxcross (clang)
Here’s an example using osxcross:
error:
As far as I understand, Apple deliberately does not allow cross-compiling modern macOS GUI applications outside of their own tools.
___isPlatformVersionAtLeast is used in frameworks like AppKit, WebKit, and UniformTypeIdentifiers.
So, we can cross-compile CLI software, but if it's something GUI-related — like Wails, for example — then it's impossible to do without a real macOS.
Maybe it makes sense to use the old sdk 10.15 for example?
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