https://sourceware.org/bugzilla/show_bug.cgi?id=29477
--- Comment #2 from Sergei Trofimovich <slyich at gmail dot com> --- (In reply to Vladimir Mezentsev from comment #1) > SIGEV_THREAD_ID is defined in /usr/include/bits/sigevent-consts.h on my OL8: > % grep -ns SIGEV_THREAD_ID /usr/include/*/* > /usr/include/asm-generic/siginfo.h:409:#define SIGEV_THREAD_ID 4 /* > deliver > to thread */ > /usr/include/bits/sigevent-consts.h:36: SIGEV_THREAD_ID = 4 /* Send > signal > to specific thread. > /usr/include/bits/sigevent-consts.h:38:#define SIGEV_THREAD_ID > SIGEV_THREAD_ID > > > What is an output of `grep -ns SIGEV_THREAD_ID /usr/include/*/*` on your > build machine ? musl is an alternative implementation of libc for linux. It does not try to be fully compatible to GNU libc, but mostly targets POSIX. Thus a few glibc-specific things are missing and some things are in different locations. SIGEV_THREAD_ID is defined in http://git.musl-libc.org/cgit/musl/tree/include/signal.h#n205: include/signal.h:#define SIGEV_THREAD_ID 4 > Also what is an output of `grep -ns pwrite /usr/include/*` on your build > machine ? 'pwrite' is defined in unistd.h http://git.musl-libc.org/cgit/musl/tree/include/unistd.h#n204 But there is a catch: pwrite and pwrite64 are not different symbols and are macro aliases: ssize_t pwrite(int, const void *, size_t, off_t); #if defined(_LARGEFILE64_SOURCE) || defined(_GNU_SOURCE) #define pwrite64 pwrite #endif Also, `dlvsym()` does not exist on musl, and GLIBC-specific symbol versions are not available, thus things like the below don't work: ptr = dlvsym (dlflag, "pthread_mutex_unlock", "GLIBC_2.0"); -- You are receiving this mail because: You are on the CC list for the bug.