2009-06-18 Marcus Brinkmann <marcus@g10code.de>

• gpgme.h.in (GPGME_CONF_PATHNAME): Remove obsolete macro.

• w32-io.c (_gpgme_io_pipe): Allocate reader/writer thread right

away.
(_gpgme_io_read, _gpgme_io_write, _gpgme_io_select)
(_gpgme_io_dup): Never allocate threads here.
(find_writer, find_reader): Check return value of thread creation
function.