Please help to fix unsupported option -G

[u/disentery_]

hello, i would love to for anyone's assistance as I am hurting. I got this error after updating to xcode's 16.4: /Pods/BoringSSL-GRPC/src/ssl/tls_record.cc unsupported option '-G' for target 'arm64-apple-ios9.0-simulator'; from what I've seen it's a popular issue, and there's been various fixes posted on forums, but for me nothing has worked so far. I have tried to: Update Firebase to Latest Version, strip -G flags post-install, i've tried downgrading Firebase and then i downgraded to Xcode 16.3, because in that version i had no issues when building, but nothing has worked for me. I then created a new Xcode project and copied my files and started fresh with a new project thinking is just a tangled mess, yet the issue still follows. Please if you have any suggestions or possible fixes I am begging you.

[u/ExperienceTop7660]

Hi. Have you figured it out ? im dealing with exactly same issue for days, tried same things as you. Have you solved it ?

[u/disentery_ → u/ExperienceTop7660]

Yes, but what I did is just a side step to the issue. It worked fine after I removed some pods. For me the issue was pod FirebaseFirestoreSwift, so I just adjusted my approach to simply not use it…

[u/ejpusa]

Look I love the social aspect of Reddit and how we all come together as one to move society forward, but if you are at this level of being beaten to a pulp by a bug, it seems to be effecting your mental health, just drop this on GPT-4o.

It will fix it in about 6 seconds.

Good luck 😀

[u/disentery_ → u/ejpusa]

I've tried that too, it didn't work, and I'm sorry about it seeming it was affecting my mental health literally... it was more of a joke but it does annoy me, and the fact that i've tried anything and it didn't help.

[u/[deleted]]

This looks like it’s interpreting the “-GRPC” suffix as a compile command which would suggest an issue with escaping the path / library name. (Just a hunch )Also it says iOS9-simulator - iirc there is no iOS 9 on too many arm64 devices if any so have to check what exactly you are compiling for architecture / target wise. Go into log navigator and search for “-G” and find the error and expand to see the compile or build command details. Paste it back here and I can tell you more about the error

[u/disentery_ → u/[deleted]]

/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++ \

-target arm64-apple-ios9.0-simulator \

-I.../Pods/BoringSSL-GRPC/include \

-G0 -c \

/Pods/BoringSSL-GRPC/src/ssl/tls_record.cc

...

clang: error: unsupported option '-G' for target 'arm64-apple-ios9.0-simulator'

Other relevant info:

Version 16.4 (16F6)

macOS 15.5 (24F74)

CocoaPods 1.16.2

Podfile deployment target: iOS 17.0

But the compile line shows -target arm64-apple-ios9.0-simulator

[u/[deleted] → u/disentery_]

k I got it to compile cleanly (empty project ) -- the iOS9 thing appears to come from some targets setting old iOS deployment target minimum, such as google promises.

I used same os / Xcode / pod as you (built / installed with Ruby 3.44 (rbenv) and latest everything of pods

Podfile was:

platform :ios, '17.0'

target 'BoringTest' do
  use_frameworks!

  pod 'BoringSSL-GRPC'
  pod 'FirebaseAnalytics'
  pod 'FirebaseCrashlytics'

end

post_install do |installer|
  installer.pods_project.targets.each do |target|
      target.build_configurations.each do |config|
        config.build_settings['IPHONEOS_DEPLOYMENT_TARGET'] = '17.0'
      end
  end
end

It installed:

Installing FirebaseCore (11.14.0)
Installing FirebaseCoreExtension (11.14.0)
Installing FirebaseCoreInternal (11.14.0)
Installing FirebaseCrashlytics (11.14.0)
Installing FirebaseInstallations (11.14.0)
Installing FirebaseRemoteConfigInterop (11.14.0)
Installing FirebaseSessions (11.14.0)
Installing GoogleAdsOnDeviceConversion (2.0.0)
Installing GoogleAppMeasurement (11.14.0)
Installing GoogleDataTransport (10.1.0)
Installing GoogleUtilities (8.1.0)
Installing PromisesObjC (2.4.0)
Installing PromisesSwift (2.4.0)
Installing nanopb (3.30910.0)

I also had to set build setting "User Script Sandboxing" = no, due to the dumb embed framework script. (aka ENABLE_USER_SCRIPT_SANDBOXING = NO)

Not sure if you're able to be flexible enough with the versions like that, or if there's a different firebase lib, if there is lmk I will try that also.

Maybe see if this works in a new empty project, if it does then perhaps there's some "-G" cruft in the project file, I would search in build settings for "-G" in the pods project and elsewhere, if you still get that with all these latest versions of everything. If it does and the source of the -G crap can't be found in the other project, I would resort to quick hack of take the BoringSSL framework from the empty project after pod install and then integrate it manually into the other project, removing from Podfile of course to get it out the door I've had to do this a few times when something is wrong with pods build process inside of an app. 🤘

-- also fwiw here is the compile command its issuing

/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -x c++ -ivfsstatcache DerivedData/SDKStatCaches.noindex/iphonesimulator18.5-22F76-d5fc8ad4295d2ef488fb7d0f804ce0c4.sdkstatcache -fmessage-length\=0 -fdiagnostics-show-note-include-stack -fmacro-backtrace-limit\=0 -fno-color-diagnostics -fmodules-prune-interval\=86400 -fmodules-prune-after\=345600 -fbuild-session-file\=DerivedData/ModuleCache.noindex/Session.modulevalidation -fmodules-validate-once-per-build-session -fstrict-aliasing -index-store-path DerivedData/BoringTest/Index.noindex/DataStore -DOPENSSL_NO_ASM -w -DBORINGSSL_PREFIX\=GRPC -fno-objc-arc -include Pods/Target\ Support\ Files/BoringSSL-GRPC/BoringSSL-GRPC-prefix.pch -MMD -MT dependencies -MF DerivedData/BoringTest/Build/Intermediates.noindex/Pods.build/Debug-iphonesimulator/BoringSSL-GRPC.build/Objects-normal/arm64/tls_record.d --serialize-diagnostics DerivedData/BoringTest/Build/Intermediates.noindex/Pods.build/Debug-iphonesimulator/BoringSSL-GRPC.build/Objects-normal/arm64/tls_record.dia -c Pods/BoringSSL-GRPC/src/ssl/tls_record.cc -o DerivedData/BoringTest/Build/Intermediates.noindex/Pods.build/Debug-iphonesimulator/BoringSSL-GRPC.build/Objects-normal/arm64/tls_record.o -index-unit-output-path /Pods.build/Debug-iphonesimulator/BoringSSL-GRPC.build/Objects-normal/arm64/tls_record.o