AC_CHECK_LIB(pq, PQisthreadsafe, AC_DEFINE(HAVE_PQISTHREADSAFE, 1, [Set if have PQisthreadsafe]))
AC_CHECK_LIB(pq, PQputCopyData, AC_DEFINE(HAVE_PQ_COPY, 1, [Set if have PQputCopyData]))
test "x$ac_cv_lib_pq_PQputCopyData" = "xyes"
AC_CHECK_LIB(pq, PQisthreadsafe, AC_DEFINE(HAVE_PQISTHREADSAFE, 1, [Set if have PQisthreadsafe]))
AC_CHECK_LIB(pq, PQputCopyData, AC_DEFINE(HAVE_PQ_COPY, 1, [Set if have PQputCopyData]))
test "x$ac_cv_lib_pq_PQputCopyData" = "xyes"