Problem during SDK build for Windows: clang++: error: invalid linker name in argument '-fuse-ld=lld'

[koronusTraveler]

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Briefly summarize your issue:

While I am building the SDK as per instructions on the how to setup AVS on windows this error has popped up twice during step 5. Step 5 is the download and building step for the SDK. When it tries the linking process for libraries it throws a couple errors then stops the build. It seems to refer to -fuse-ld = lld. I have been looking for similar issues though this appears to be a rather new one.

What is the expected behavior?

The build completes and the SDK is properly built and sample app is ready.

What behavior are you observing?

This is the full errors that I am concerned about.

clang++: error: invalid linker name in argument '-fuse-ld=lld' make[3]: [core/Crypto/acsdkCryptoInterfaces/src/CMakeFiles/acsdkCryptoInterfaces.dir/build.make:114: bin/libacsdkCryptoInterfaces.dll] Error 1 make[2]: [CMakeFiles/Makefile2:11689: core/Crypto/acsdkCryptoInterfaces/src/CMakeFiles/acsdkCryptoInterfaces.dir/all] Error 2 make[2]: *** Waiting for unfinished jobs....

clang++: error: invalid linker name in argument '-fuse-ld=lld' make[3]: [AVSCommon/CMakeFiles/AVSCommon.dir/build.make:1828: bin/libAVSCommon.dll] Error 1 make[2]: [CMakeFiles/Makefile2:8360: AVSCommon/CMakeFiles/AVSCommon.dir/all] Error 2 make[1]: [CMakeFiles/Makefile2:15421: SampleApp/src/CMakeFiles/SampleApp.dir/rule] Error 2 make: [Makefile:4209: SampleApp] Error 2

Provide the steps to reproduce the issue, if applicable:

I simply went through the process to setup AVS on windows. I utilized step 5 and entered the command bash setup.sh config.json -s 998987 . The error is displayed and the build breaks in the build section.

Tell us about your environment:

I am using windows 10.

What version of the AVS Device SDK are you using?

  The most up to date version is what I am trying to setup.

Tell us what hardware you're using:

• [ x] Desktop / Laptop
• [ ] Raspberry Pi
• [ ] Other - tell us more:

Tell us about your OS (Type & version):

• [ ] Linux
• [ ] MacOS
• [ ] Raspbian Stretch
• [ ] Raspbian Jessy
• [x ] Other - Windows 10

[wryley-amzn]

Hi there, I think that this error is unrelated to the SDK but rather your clang++ compiler cannot recognize the '-fuse-ld=lld'. I believe you need to add this as a dependency to the project https://lld.llvm.org/. Perhaps this is included in one of the dependencies listed in https://developer.amazon.com/en-US/docs/alexa/avs-device-sdk/dependencies.html, please ensure that all required dependencies are installed as well.

[koronusTraveler]

How would you go about adding this as a dependency? I'm rather new to working with AVS.

[khaled-elnaggar]

Hi there, I think that this error is unrelated to the SDK but rather your clang++ compiler cannot recognize the '-fuse-ld=lld'. I believe you need to add this as a dependency to the project https://lld.llvm.org/. Perhaps this is included in one of the dependencies listed in https://developer.amazon.com/en-US/docs/alexa/avs-device-sdk/dependencies.html, please ensure that all required dependencies are installed as well.

I am having the same exact issue, could you provide more details on the solution?

[jaynabonne]

I solved this on Windows by simply installing one more package:

pacman -S mingw-w64-x86_64-lld

[kjkh]

Closing ticket as instructions for the lld dependency are provided. If there are any further questions, please feel free to open another ticket.