Error occurred when building

[pfeux]

I am building tdlib in Ubuntu docker image

Following are my commands:

apt-get update && apt-get upgrade -y && apt-get autoremove -y && apt-get install make git zlib1g-dev libssl-dev gperf php-cli cmake clang-14 libc++-dev libc++abi-dev -y

CXXFLAGS="-stdlib=libc++" CC=/usr/bin/clang-14 CXX=/usr/bin/clang++-14 cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX:PATH=../tdlib/Release -DTD_ENABLE_LTO=ON -DCMAKE_AR=/usr/bin/llvm-ar-14 -DCMAKE_NM=/usr/bin/llvm-nm-14 -DCMAKE_OBJDUMP=/usr/bin/llvm-objdump-14 -DCMAKE_RANLIB=/usr/bin/llvm-ranlib-14 ..

cmake --build . --target install

I recently started getting the following error:

#15 58.87 -- Found ZLIB: /usr/lib/x86_64-linux-gnu/libz.so (found version "1.3")  
#15 58.87 -- Found ZLIB: /usr/include /usr/lib/x86_64-linux-gnu/libz.so
#15 58.88 -- Performing Test ATOMICS_FOUND
#15 58.98 -- Performing Test ATOMICS_FOUND - Failed
#15 58.98 -- Performing Test ATOMICS_FOUND
#15 59.08 -- Performing Test ATOMICS_FOUND - Failed
#15 59.08 CMake Error at CMake/FindAtomics.cmake:57 (message):
#15 59.08   Atomic operations library isn't found.
#15 59.08 Call Stack (most recent call first):
#15 59.08   tdutils/CMakeLists.txt:406 (find_package)

Has any requirements changed?

Thanks,

[levlam]

What is your host OS CPU architecture, and what is Docker image CPU architecture?

Compilation doesn't work for some reason in the Docker image. You need to check the file build/CMakeFiles/CMakeError.log inside the docker container for details. You can send it here if you need help with finding the cause.

[pfeux]

CMakeError.log file is not generated.

The above error occurs when the following line executes

CXXFLAGS="-stdlib=libc++" CC=/usr/bin/clang-14 CXX=/usr/bin/clang++-14 cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX:PATH=../tdlib/Release -DTD_ENABLE_LTO=ON -DCMAKE_AR=/usr/bin/llvm-ar-14 -DCMAKE_NM=/usr/bin/llvm-nm-14 -DCMAKE_OBJDUMP=/usr/bin/llvm-objdump-14 -DCMAKE_RANLIB=/usr/bin/llvm-ranlib-14 ..

I have tried running in my local Linux docker with ubuntu:latest image (x86_64). Following is my PC configuration:
Processor: Intel(R) Core(TM) i7-10850H CPU @ 2.70GHz 2.71 GHz
System type: 64-bit operating system, x64-based processor
RAM: 32 GB
OS: Windows 11 21H2
OS Build: 22000.2899
Docker version 26.1.1, build 4cf5afa (installed in WSL Ubuntu 22.04 x86_64)

[levlam]

Files CMakeError.log and CMakeOutput.log are generated by the mentioned command during the CMake configuration in the build/CMakeFiles/ directory and can be used to find the cause of the build fail.

[pfeux]

Please see the screenshot. There were no error log files generated.

[levlam]

Since CMake 3.26 the “CMakeFiles/CMakeOutput.log” and “CMakeFiles/CMakeError.log” files are no longer generated and information previously logged to those files is instead logged to “CMakeFiles/CMakeConfigureLog.yaml”. Could you send the file to https://t.me/tdlib_bot?

[pfeux]

Hi, I have forwarded the file to tdlib_bot.

[levlam]

Compilation of any file fails with the error "Libc++ only supports Clang 16 and later". It looks like you have a too new libc++ installed not through apt. So this looks like a broken Docker image.

[pfeux]

Thanks @levlam

Please provide your opinion on this fix:

Now I am installing the latest version of clang and while building I get the clang version using

clangVersion=$(clang --version | awk 'NR==1 {split($4, a, "."); print a[1]}')

and I made following changes

CXXFLAGS="-stdlib=libc++" CC=/usr/bin/clang CXX=/usr/bin/clang++ cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX:PATH=../tdlib/Release -DTD_ENABLE_LTO=ON -DCMAKE_AR=/usr/bin/llvm-ar-$clangVersion -DCMAKE_NM=/usr/bin/llvm-nm-$clangVersion -DCMAKE_OBJDUMP=/usr/bin/llvm-objdump-$clangVersion -DCMAKE_RANLIB=/usr/bin/llvm-ranlib-$clangVersion ..

[levlam]

This may or may not work. Compilation with LTO can have a lot of issues if there are any inconsistencies in the used toolchain.

[levlam]

I checked that LTO build works with clang-18 on Ubuntu 24.04 and pushed support for Ubuntu 24.04 in the build instructions generator. This also means that your approach should work both on Ubuntu 24 and Ubuntu 22.

[pfeux]

Awesome! Thanks for your help. I will close this issue now.