I'm trying to convert a java library to objective-c using j2objc and include the generated objc files into my XCode project. I managed to generate the objc files, but XCode gives me the following error: https://i.sstatic.net/QX3zF.png
I used lipo -info on a .o file and I get this "architecture: x86_64". Does it mean those objc files are not meant to run on arm64 architectures and if so, how can I solve this ? Are there any flags I could use to generate the files for arm64 ?
A previous error I had was "ARC forbids explicit message" and I solved this by adding a compiler flag -fno-objc-arc to all the compile sources related to this error. Is this solution safe ?
To compile for arm64, the -arch arm64 and -isysroot IPHONE_SDK_DIRECTORY flags are needed. To find the IPHONE_SDK_DIRECTORY on your system, run xcrun -sdk iphoneos --show-sdk-path.
There's nothing J2ObjC-specific about this, they are normal iOS flags you'll find in you look at the log of a successful compile of an Objective C file in Xcode and click its right button to expand and show all the flags used.
J2ObjC by default does not generate ARC code, so the -fno-objc-arc flag is okay. If you would prefer ARC, run j2objc with its -use-arc flag. Don't compile those generated files with -fno-objc-arc, however, as objects won't be released when your app is finished with them.
