https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=7e09931ad95a10d15b7a93b49faeadfe25f63464
commit 7e09931ad95a10d15b7a93b49faeadfe25f63464 Author: Yaakov Selkowitz <yselk...@redhat.com> Date: Wed Jul 25 15:00:43 2018 -0500 Cygwin: fpathconf: update _PC_ASYNC_IO return value Signed-off-by: Yaakov Selkowitz <yselk...@redhat.com> Diff: --- winsup/cygwin/fhandler.cc | 1 + 1 file changed, 1 insertion(+) diff --git a/winsup/cygwin/fhandler.cc b/winsup/cygwin/fhandler.cc index ded12cc..22dbdb0 100644 --- a/winsup/cygwin/fhandler.cc +++ b/winsup/cygwin/fhandler.cc @@ -1875,6 +1875,7 @@ fhandler_base::fpathconf (int v) set_errno (EINVAL); break; case _PC_ASYNC_IO: + return 1; case _PC_PRIO_IO: break; case _PC_SYNC_IO: