• Rafaël Carré's avatar
    Fix thread library check · 7778302e
    Rafaël Carré authored
    Don't use ac_cv_search cached value because it could contain
    "no" or "none required" which aren't valid link flags
    AC_CHECK_LIB(main, xxx) did not exactly search for main symbol, it
    searched for the presence of the library.
    Instead we look for a required symbol.
    We don't use e.g. pthread_mutex_lock because some pthread symbols
    are available in glibc, but not all.
    Not finding pthread library is not an error, because at least OS/2 and
    symbian don't need it. (We skip the check on Windows already)
configure.ac 128 KB