doc/posix-functions/pthread_sigmask.texi does not mention any issues
with glibc, but the pthread_sigmask module ends up replacing
pthread_sigmask anyways:
configure:7526: checking for pthread_sigmask
configure:7526: gcc -o conftest -g -O2 conftest.c >&5
/tmp/ccRmi1Nr.o: In function `main':
/home/remote/eblake/gnulib/testdir20236/build/conftest.c:76: undefined
reference to `pthread_sigmask'
GNULIB_PTHREAD_SIGMASK='1'
HAVE_PTHREAD_SIGMASK='0'
LIB_PTHREAD_SIGMASK=''
REPLACE_PTHREAD_SIGMASK='1'
Why? Because AC_CHECK_FUNCS_ONCE does not add the mandatory -pthread
compiler switch, and glibc only provides pthread_sigmask when compiling
for threads. This seems fishy to me; it seems like we have a bug in
pthread_sigmask.m4 for not recognizing glibc's version, and populating
$(LIB_PTHREAD_SIGMASK) with -pthread as appropriate.
--
Eric Blake ebl...@redhat.com +1-801-349-2682
Libvirt virtualization library http://libvirt.org
