Howard,
I have a recollection of a similar issue that only occurs with the latest flex (that requires its own library to be passed to the linker). I cannot remember if this was a flex packaging issue, or if we ended up recommending to downgrade flex to a known to work version. The issue should not happen if building from an official tarball though. Cheers, Gilles ----- Original Message ----- Hi John, I don’t think an external dependency is going to fix this. In your build area, do you see any .lo files in opal/util/keyval ? Which compiler are you using? Also, are you building from the tarballs at https://www.open-mpi.org/software/ompi/v4.1/ ? Howard From: users <users-boun...@lists.open-mpi.org> on behalf of John Haiducek via users <users@lists.open-mpi.org> Reply-To: Open MPI Users <users@lists.open-mpi.org> Date: Tuesday, May 25, 2021 at 3:49 PM To: "users@lists.open-mpi.org" <users@lists.open-mpi.org> Cc: John Haiducek <jhaid...@gmail.com> Subject: [EXTERNAL] [OMPI users] Linker errors in Fedora 34 Docker container Hi, When attempting to build OpenMPI in a Fedora 34 Docker image I get the following linker errors: #22 77.36 make[2]: Entering directory '/build/openmpi-4.1.1/opal/tools/ wrappers' #22 77.37 CC opal_wrapper.o #22 77.67 CCLD opal_wrapper #22 77.81 /usr/bin/ld: ../../../opal/.libs/libopen-pal.so: undefined reference to `opal_util_keyval_yytext' #22 77.81 /usr/bin/ld: ../../../opal/.libs/libopen-pal.so: undefined reference to `opal_util_keyval_yyin' #22 77.81 /usr/bin/ld: ../../../opal/.libs/libopen-pal.so: undefined reference to `opal_util_keyval_yylineno' #22 77.81 /usr/bin/ld: ../../../opal/.libs/libopen-pal.so: undefined reference to `opal_util_keyval_yynewlines' #22 77.81 /usr/bin/ld: ../../../opal/.libs/libopen-pal.so: undefined reference to `opal_util_keyval_yylex' #22 77.81 /usr/bin/ld: ../../../opal/.libs/libopen-pal.so: undefined reference to `opal_util_keyval_parse_done' #22 77.81 /usr/bin/ld: ../../../opal/.libs/libopen-pal.so: undefined reference to `opal_util_keyval_yylex_destroy' #22 77.81 /usr/bin/ld: ../../../opal/.libs/libopen-pal.so: undefined reference to `opal_util_keyval_init_buffer' #22 77.81 collect2: error: ld returned 1 exit status My configure command is just ./configure --prefix=/usr/local/openmpi. I also tried ./configure --prefix=/usr/local/openmpi --disable-silent- rules --enable-builtin-atomics --with-hwloc=/usr --with-libevent= external --with-pmix=external --with-valgrind (similar to what is in the Fedora spec file for OpenMPI) but that produces the same errors. Is there a third-party library I need to install or an additional configure option I can set that will fix these? John
