[PATCH 2/3] Merge getopt patch from Gnulib

[Paul Eggert]

* posix/getopt.c [!_LIBC]: Merge _WIN32 patch from Gnulib
so that these source files are identical.
This makes no difference for glibc.
---
 posix/getopt.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/posix/getopt.c b/posix/getopt.c
index a160a4e3bd..128dc7fcf5 100644
--- a/posix/getopt.c
+++ b/posix/getopt.c
@@ -45,7 +45,8 @@
 # define _(msgid) gettext (msgid)
 /* When used standalone, flockfile and funlockfile might not be
    available.  */
-# ifndef _POSIX_THREAD_SAFE_FUNCTIONS
+# if (!defined _POSIX_THREAD_SAFE_FUNCTIONS \
+      || (defined _WIN32 && ! defined __CYGWIN__))
 #  define flockfile(fp) /* nop */
 #  define funlockfile(fp) /* nop */
 # endif
-- 
2.37.2