static library dependency because of swift compile order problem.

[siavash...@gmail.com]

Hi,

I had the problem where XCode tried to compile swift-files before my Java files so I decided to move over my Java to a separate target and build it as a static library that my main project has a dependency on. But I get this error:

Undefined symbols for architecture x86_64:
"_IOSClass_fromClass", referenced from:
___ComSiamasterMyClass_class__block_invoke in libJava.a(MyClass.o)
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Also in XCode 7.1, When I try to add the libz.tbd and libicucore.tbd, I get this error:

error: /Applications/Xcode-beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/libtool: can't open file: /Applications/Xcode-beta.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator9.1.sdk/usr/lib/libz.tbd (No such file or directory)

Are there any solutions/workarounds for these?

[Tom Ball]

IOSClass_fromClass is defined in jre_emul's IOSClass.o, so it sounds like you didn't link libjre_emul.a into your app. That requires a "-ljre_emul" Other Linker Flag, plus path added to Library Search Paths.

I can't help with libz not being part of 7.1, as it's a very early pre-release. Here is its source code, in case you want to take the time to build it as a static library. I've never done it, though, and so can't help.

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[siavash...@gmail.com]

Aha!
I had to add the linker flag to the main project as well. That error is now gone.

I can see in the log that files are being translated now, but I can't access the header files from the static library or the main project.

Could that have something to do with ${DERIVED_FILES_DIR}?
I've added it as user header search path for both the static lib and the main project target.

[siavash...@gmail.com]

This how my build rule looks like in the static lib target:

if [ ! -f "${J2OBJC_HOME}/j2objc" ]; then echo "J2OBJC_HOME not correctly defined in Settings file, currently set to '${J2OBJC_HOME}'"; exit 1; fi;
"${J2OBJC_HOME}/j2objc" -d ${DERIVED_FILES_DIR} -sourcepath "${PROJECT_DIR}/Java/JavaFiles" -use-arc --no-package-directories ${INPUT_FILE_PATH};

Output files:
${DERIVED_FILES_DIR}/${INPUT_FILE_BASE}.m
${DERIVED_FILES_DIR}/${INPUT_FILE_BASE}.h

[siavash...@gmail.com]

Update:

I can actually access the generated files in the static lib. But once I try to access them from the project it stops compiling. I've also tried adding ../ to both User header search paths and Header search paths, but my project is unable to find the generated header files.

[Keith Stanger]

http://j2objc.org/docs/Xcode-Build-Rules.html - Try adding ${DERIVED_FILES_DIR} to your header search paths.

On Wed, 16 Sep 2015 at 12:12 <siavash...@gmail.com> wrote:

Update:

I can actually access the generated files in the static lib. But once I try to access them from the project it stops compiling. I've also tried adding ../ to both User header search paths and Header search paths, but my project is unable to find the generated header files.

[siavash...@gmail.com]

Thanks!

I think I had done that. However, I was just about to post an update to say I finally managed to do what I wanted.

I added a Cocoa Touch Framework to my workspace and linked it into my main project.
in my Cocoa Touch framework, I added a build rule that looks like this:

/bin/cp ${DERIVED_FILES_DIR}/*.h ${INCLUDE_DIR}
/bin/cp ${J2OBJC_HOME}/include/J2ObjC_header.h ${INCLUDE_DIR}
/bin/cp ${J2OBJC_HOME}/include/IOSObjectArray.h ${INCLUDE_DIR}
/bin/cp ${J2OBJC_HOME}/include/IOSArray.h ${INCLUDE_DIR}
/bin/cp ${J2OBJC_HOME}/include/J2ObjC_common.h ${INCLUDE_DIR}
/bin/cp ${J2OBJC_HOME}/include/J2ObjC_types.h ${INCLUDE_DIR}
/bin/cp ${J2OBJC_HOME}/include/NSObject+JavaObject.h ${INCLUDE_DIR}
/bin/cp ${J2OBJC_HOME}/include/JavaObject.h ${INCLUDE_DIR}
/bin/cp ${J2OBJC_HOME}/include/IOSReflection.h ${INCLUDE_DIR}

where I've set INCLUDE_DIR to be = ${BUILT_PRODUCTS_DIR}/JavaFramework.framework/Headers in my configuration file.

[siavash...@gmail.com]

Actually, This is better:

INCLUDE_DIR = ${BUILT_PRODUCTS_DIR}/${CONTENTS_FOLDER_PATH}/Headers

[siavash...@gmail.com]

And this is even better :P:

INCLUDE_DIR = ${BUILT_PRODUCTS_DIR}/${PUBLIC_HEADERS_FOLDER_PATH}

[siavash...@gmail.com]

Something is weird.

When I include the header files in my umbrella header of the framework project, I can't use the classes in my main project anymore. It's either having all the warnings about missing submodules or not being able to compile.