master 1083e52 3/4: Merge from origin/emacs-27

[Glenn Morris]

branch: master
commit 1083e5243f36a28dd4c446720551cd300062fdd9
Merge: 0e9a14b cdf8c31
Author: Glenn Morris <address@hidden>
Commit: Glenn Morris <address@hidden>

    Merge from origin/emacs-27
    
    cdf8c31844 Extend workaround for Cygwin O_PATH bug
---
 configure.ac | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/configure.ac b/configure.ac
index f604acb..94f0bf3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -5752,9 +5752,9 @@ case $opsys,$emacs_uname_r in
     AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
            echo
           ;;
-  cygwin,3.0.[[0-7]]'('*)
+  cygwin,3.0.[[0-7]]'('* | cygwin,3.1.[[0-2]]'('*)
     AC_DEFINE([HAVE_CYGWIN_O_PATH_BUG], 1,
-      [Define to 1 if opening a FIFO with O_PATH causes a hang.]);;
+      [Define to 1 if opening a FIFO, socket, or symlink with O_PATH is 
buggy.]);;
 esac
 
 # Remove any trailing slashes in these variables.