x/mobile: Unable to build xcframework with gomobile and Xcode 14 #53316
Comments
I think gomobile picks up the C compiler from running Could you try running that command again, maybe twice? gomobile should probably be more resilient on that. Maybe it should only use stdout of |
cherrymui
added
the
NeedsInvestigation
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I plan to upgrade to Xcode 14 soon so that it may be possible for me to take a look. |
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I tried to run the command several times yesterday, but the result was always the same. I'm unfamiliar with golang, but the error message "exec: 2022-06-09 not found" seemed suspicious. I thought it could be some kind of parsing issue. I'm not sure if the problem is caused by parsing the result of with Xcode 13.4.1 (13F100): with Xcode 14 (14A5228q): However, I rerun the command today, and... it works! Still, I believe there is a bug hiding somewhere, as the problem was probably caused by the given date when the command was run (2022-06-09). Thankfully today (2022-06-10) it works fine :-) |
I'm afraid you'll need to go back in time to reproduce ;-) |
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On my mac M1 machine, it sometimes print messages like It doesn't always print that. In my experience it is more likely to print if it is the first time to use such commands in a while. And the second and subsequent runs just behave normally, without the extra output. Maybe it will print if you restart the machine and run that command immediately. |
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I have also experienced this issue with the following messages: These warnings appear to be included in I have currently no idea how to fix those warnings. A proper fix would probably involve parsing and matching all lines with a regex. |
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The issue appears to be coming from func envClang(sdkName string) (clang, cflags string, err error) {
if buildN {
return sdkName + "-clang", "-isysroot " + sdkName, nil
}
cmd := exec.Command("xcrun", "--sdk", sdkName, "--find", "clang")
out, err := cmd.CombinedOutput()
if err != nil {
return "", "", fmt.Errorf("xcrun --find: %v\n%s", err, out)
}
clang = strings.TrimSpace(string(out))Which does indeed seem to call |
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Based on my tests this appears to only happen on the first try: After host reboot it resets and those log messages show up again. |
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According to this discussion: https://developer.apple.com/forums/thread/703233
But I tried reinstalling Command Line Tools or installing newer than Honestly some input validation could be added to |
Currently some installations of Xcode and Command Line Tools cause warnings about missing extensions which break parsing of paths returned from `xcrun` that `gomobile` depends on resulting in errors like this: ``` cgo: C compiler "2022-09-07" not found: exec: "2022-09-07": executable file not found in $PATH ``` This is caused by these warnings returned on `stdout` by `xcrun`: ``` > xcrun --find clang 2022-09-07 14:50:13.907 xcodebuild[69942:386823822] Requested but did not find extension point with identifier Xcode.IDEKit.ExtensionSentinelHostApplications for extension Xcode.DebuggerFoundation.AppExtensionHosts.watchOS of plug-in com.apple.dt.IDEWatchSupportCore 2022-09-07 14:50:13.908 xcodebuild[69942:386823822] Requested but did not find extension point with identifier Xcode.IDEKit.ExtensionPointIdentifierToBundleIdentifier for extension Xcode.DebuggerFoundation.AppExtensionToBundleIdentifierMap.watchOS of plug-in com.apple.dt.IDEWatchSupportCore 2022-09-07 14:50:14.041 xcodebuild[69942:386823822] XType: com.apple.fonts is not accessible. 2022-09-07 14:50:14.041 xcodebuild[69942:386823822] XType: XTFontStaticRegistry is enabled. /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang ``` Resulting in `gomobile` interpreting the date `2022-09-07` as Clang compiler. Resolves: golang/go#53316 Signed-off-by: Jakub Sokołowski <jakub@status.im>
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Small update from my side: Not sure what changed, but now I'm able to run
No more "cgo: C compiler" errors occurs when running I truncated it because it just lists all functions and methods that gomobile exposes from go to Objective-C. When creating the same xcframework with Xcode 13.4.1, everything works fine, without any issues. UPDATE: Because the above problem is probably not related to the original one (with UPDATE: There was something messed up with my local environment. I reinstalled golang and can't reproduce the issue anymore. Sorry for the confusion. I can now use
Not sure what resolved the original issue I reported here, but I think we can now close it. |
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@darrarski please do not close this, this is a valid issue I'm fixing in: |
Oh, OK, sorry for that. Will keep an eye on the progress, but like I said - it works now for me with latest Xcode and gomobile. Thanks a lot for all your precious time and effort! |
What version of Go are you using (
go version)?Does this issue reproduce with the latest release?
Yes
What operating system and processor architecture are you using (
go env)?go envOutputWhat did you do?
I tried to build xcframework for iOS using Xcode 14 (14A5228q) developer tools with the following command:
What did you expect to see?
I expected the command to create xcframework. It works when I switch to Xcode 13.4.1 (13F100) developer tools.
What did you see instead?
When using Xcode 14 (14A5228q) developer tools, the command fails with the following error:
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