<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/69056>69056</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            linker error in a new llvm build
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            new issue
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          mbelda
      </td>
    </tr>
</table>

<pre>
    I am installing llvm in a clean build and I got a linker error when building it.

I have configured it with the following options.
~~~
cmake -S llvm -B build -G "Unix Makefiles" -DLLVM_ENABLE_PROJECTS="clang;clang-tools-extra;compiler-rt;polly" -DCMAKE_BUILD_TYPE=Release
~~~ 
And then when building it executing `cmake --build build` the following error appears.

~~~
[ 52%] Building CXX object projects/compiler-rt/lib/ubsan/CMakeFiles/RTUbsan.x86_64.dir/ubsan_value.cpp.o
[ 52%] Built target RTUbsan.x86_64
[ 52%] Building CXX object projects/compiler-rt/lib/ubsan/CMakeFiles/clang_rt.ubsan_standalone-x86_64.dir/ubsan_init_standalone_preinit.cpp.o
[ 52%] Linking CXX static library ../../../../lib/clang/18/lib/x86_64-unknown-linux-gnu/libclang_rt.ubsan_standalone.a
[ 52%] Built target clang_rt.ubsan_standalone-x86_64
[ 52%] Generating version list for clang_rt.ubsan_standalone-dynamic-x86_64
[ 52%] Building CXX object projects/compiler-rt/lib/ubsan/CMakeFiles/RTUbsan_dynamic_version_script_dummy.x86_64.dir/dummy.cpp.o
[ 52%] Built target RTUbsan_dynamic_version_script_dummy.x86_64
[ 52%] Linking CXX shared library ../../../../lib/clang/18/lib/x86_64-unknown-linux-gnu/libclang_rt.ubsan_standalone.so
/usr/bin/ld: CMakeFiles/RTUbsan_cxx.x86_64.dir/ubsan_type_hash_itanium.cpp.o: in function `findBaseAtOffset(__cxxabiv1::__class_type_info const*, long)':
/home/mbelda/epfl/llvm-project/compiler-rt/lib/ubsan/ubsan_type_hash_itanium.cpp:174: undefined reference to `typeinfo for __cxxabiv1::__si_class_type_info'
/usr/bin/ld: /home/mbelda/epfl/llvm-project/compiler-rt/lib/ubsan/ubsan_type_hash_itanium.cpp:174: undefined reference to `typeinfo for __cxxabiv1::__class_type_info'
/usr/bin/ld: /home/mbelda/epfl/llvm-project/compiler-rt/lib/ubsan/ubsan_type_hash_itanium.cpp:174: undefined reference to `__dynamic_cast'
/usr/bin/ld: /home/mbelda/epfl/llvm-project/compiler-rt/lib/ubsan/ubsan_type_hash_itanium.cpp:178: undefined reference to `typeinfo for __cxxabiv1::__vmi_class_type_info'
/usr/bin/ld: /home/mbelda/epfl/llvm-project/compiler-rt/lib/ubsan/ubsan_type_hash_itanium.cpp:178: undefined reference to `__dynamic_cast'
/usr/bin/ld: CMakeFiles/RTUbsan_cxx.x86_64.dir/ubsan_type_hash_itanium.cpp.o: in function `isDerivedFromAtOffset(__cxxabiv1::__class_type_info const*, __cxxabiv1::__class_type_info const*, long)':
/home/mbelda/epfl/llvm-project/compiler-rt/lib/ubsan/ubsan_type_hash_itanium.cpp:137: undefined reference to `typeinfo for __cxxabiv1::__si_class_type_info'
/usr/bin/ld: /home/mbelda/epfl/llvm-project/compiler-rt/lib/ubsan/ubsan_type_hash_itanium.cpp:137: undefined reference to `typeinfo for __cxxabiv1::__class_type_info'
/usr/bin/ld: /home/mbelda/epfl/llvm-project/compiler-rt/lib/ubsan/ubsan_type_hash_itanium.cpp:137: undefined reference to `__dynamic_cast'
/usr/bin/ld: /home/mbelda/epfl/llvm-project/compiler-rt/lib/ubsan/ubsan_type_hash_itanium.cpp:141: undefined reference to `typeinfo for __cxxabiv1::__vmi_class_type_info'
/usr/bin/ld: /home/mbelda/epfl/llvm-project/compiler-rt/lib/ubsan/ubsan_type_hash_itanium.cpp:141: undefined reference to `typeinfo for __cxxabiv1::__class_type_info'
/usr/bin/ld: /home/mbelda/epfl/llvm-project/compiler-rt/lib/ubsan/ubsan_type_hash_itanium.cpp:141: undefined reference to `__dynamic_cast'
/usr/bin/ld: CMakeFiles/RTUbsan_cxx.x86_64.dir/ubsan_type_hash_itanium.cpp.o: in function `__ubsan::checkDynamicType(void*, void*, unsigned long)':
/home/mbelda/epfl/llvm-project/compiler-rt/lib/ubsan/ubsan_type_hash_itanium.cpp:245: undefined reference to `typeinfo for __cxxabiv1::__class_type_info'
/usr/bin/ld: /home/mbelda/epfl/llvm-project/compiler-rt/lib/ubsan/ubsan_type_hash_itanium.cpp:245: undefined reference to `typeinfo for std::type_info'
/usr/bin/ld: /home/mbelda/epfl/llvm-project/compiler-rt/lib/ubsan/ubsan_type_hash_itanium.cpp:245: undefined reference to `__dynamic_cast'
collect2: error: ld returned 1 exit status
make[2]: *** [projects/compiler-rt/lib/ubsan/CMakeFiles/clang_rt.ubsan_standalone-dynamic-x86_64.dir/build.make:257: lib/clang/18/lib/x86_64-unknown-linux-gnu/libclang_rt.ubsan_standalone.so] Error 1
make[1]: *** [CMakeFiles/Makefile2:38979: projects/compiler-rt/lib/ubsan/CMakeFiles/clang_rt.ubsan_standalone-dynamic-x86_64.dir/all] Error 2
make: *** [Makefile:156: all] Error 2

~~~
</pre>
<img width="1px" height="1px" alt="" src="http://email.email.llvm.org/o/eJzcmF2P2joTxz-NubESEYcQcsFFWDbVPs_2tGq3Rz1XkRNPiA-OHdkOCzf97EdOYLtsoXt6-kolFIzxDP_fZGZQhhrDVxJgjqIFipYj2tla6XlTgGB0VCi2m99g2mAujaVCcLnCQmzcZ0xxKYBKXHRcMEwlwzd4pSymWHC5Bo1Ba6XxfQ37M86YWx-Nl2icDtcbXNMN4FLJiq86DQxzi--5rbGtAVdKCHXvzFRruZJmb_vhw4dhUTZ0Ddh7O2jyFnst3guMCHkn-Ra_pGuouACDCMHe8vb2z5f59R_p4vY6f_3m1f-ur-7eonCJCCkFlSsULvp3zyoljAdbq6nbU03LBWhPWxQuWiXEbnB39TL9_3W-eHdzu8zv_np9jcLlGxBADTwIxcMqlcwhyU_CgWELZWfdBzQd74G8gaO_oun4STCGuNK2BarNUTgfAoOiBY4IIhGKlnhx-LWr9--xKv6G0uJWK_duEMke05FM8AKRrCsMlYhkVy5-2RC_7M3dO7ftb2fTfDrxGdeHk_mGig78sm19dUaAxZbqFVh87OU7yu3vZK6tP0g0lkpGhZLgnQDgkttHR_JWg9s6i3TL5fqg0VhqeYkFLzTVO-z7iGRPLoPMIcdIFswetgYpXifXUt1LT3DZbb2V7IYDZxF8-lyYn6M_Yf8CJGjap-IGtOFKYsGNxZXSn3HHdpI2vDzv9hunX77_wXyvMTel5q3NWdc0u-PcHLa-JCv_jfPnsqGmro_90GwwBz6SdcaRF9yFTzAUpvhkEMvt9lQd210LeU1NnXNLJe-affTC1HX8qpOl68OuU1VcsgU1kNpXVWXAIjLLnVda8E2AwhSFaZ6XghozOOWyUq7PG4tIisgVFsrRJ4jE7vRBfq0aQCQb_n8QyaCthCMRm8bbJ80zOfMZEBSmQTxxMJ1kUHEJDGuoQIMsAVvluJxhr9Vl_adEhj-FcgDng38BSBfHkz9UaUldOv10vbOviv-m-RVz6hmmL7kH36cBcbMEzTfAMq2a_9yFLqJnhfFv17O-EunieH61njUJfr-e9ZVMF8fz83twng8ofQTLGsr1clB0t2sBkdlGcbZvnY-WnexnDuwntVMyiX6rPPkyHmPZAHJBAGcSvVRCQGmJM-5nIm4hnLnttPMTYNhy2z-fd2awaegaULQgKFoOdOnwwihafNshw_Fz8b7A-omO34sIUxL1fxrf42kwWuLrfkoUHGEHp7CPeA7zMhfUcJbEiTv-AwJDhfgomjwS_VTtQaBrkNHUfX3K9GEcNmLzkCVhQkcwD6ZJTJI4isNRPZ-RKCEUqjKuqjABEpNJXBVxAixg5ZjFIz4nYxIG42ASRCGJQr9M2LQKp5MJi8bTGU3QZAwN5cJ3heArvRpxYzqYT5NxNB0JWoAw_ViVEAn3uP8SEZd5Iz3vi6foVgZNxoIbaz56sdwKmB_NUPtpq3PSzzn7JBp1Wsxra1vjyplkiGQrbuuu8EvV7Kvz0yLtRbjb04v8JwAA__9cqkkC">