Public bug reported: Hello,
while compiling our software in a Ubuntu jammy docker image I noticed a backward incompatibility issue in glibc 2.34-0ubuntu3. Our build fails with: ld.lld: error: undefined symbol: pthread_yield >>> referenced by tlibthrd.cxx:1546 (ptlib/unix/tlibthrd.cxx:1546) >>> tlib.o:(PTimedMutex::~PTimedMutex()) in archive >>> /builds/ExternalLibs/ptlib/2.10.9_1591084383/Applications_ubuntu2004_x64_cxx17_clang10/lib/libpt_d_s.a >>> did you mean: pthread_yield@GLIBC_2.2.5 >>> defined in: /lib/x86_64-linux-gnu/libc.so.6 The libpt_d_s.a library was statically built on Ubuntu 20.04 and depends on a lot of pthread symbols: $ nm /builds/ExternalLibs/ptlib/2.10.9_1591084383/Applications_ubuntu2004_x64_cxx17_clang10/lib/libpt_d_s.a|grep -i " U pthread"|sort -u U pthread_attr_destroy U pthread_attr_init U pthread_attr_setschedparam U pthread_attr_setschedpolicy U pthread_attr_setstacksize ... U pthread_yield Recompiling libpt against the current glibc will redirect from pthread_yield to sched_yield, but nevertheless it would be nice if existing libraries could be used for the transition phase. The changes behavior is most likely due to https://sourceware.org/git/?p=glibc.git;a=commit;h=c2fd60a5861efef48252f5cc7efc70e1d8a0da9a Thanks, Gregor ** Affects: glibc (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1949988 Title: undefined symbol: pthread_yield To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/glibc/+bug/1949988/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs