When HAVE_ALSA_ASOUNDLIB_H is #defined, we're going to use functions
from pthread.h, so #include it. Do not include it otherwise, so we
don't break compilation on platforms that don't have it (since
configure will have ensured that HAVE_ALSA_ASOUNDLIB_H is not defined
on those).
When HAVE_ALSA_ASOUNDLIB_H is #defined, we're going to use functions from pthread.h, so #include it. Do not include it otherwise, so we don't break compilation on platforms that don't have it (since configure will have ensured that HAVE_ALSA_ASOUNDLIB_H is not defined on those).