[newlib-cygwin/main] libc/time: Add CLOCK_TAI

[Corinna Vinschen]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=afa72e6c49bcb24bf126a98bf5c3bba580bbb237

commit afa72e6c49bcb24bf126a98bf5c3bba580bbb237
Author:     Sebastian Huber <sebastian.huber@embedded-brains.de>
AuthorDate: Wed Jul 16 12:09:10 2025 +0200
Commit:     Corinna Vinschen <corinna@vinschen.de>
CommitDate: Wed Jul 16 12:16:29 2025 +0200

    libc/time: Add CLOCK_TAI
    
    For _GNU_VISIBLE, provide the CLOCK_TAI clock identifier for the
    International Atomic Time.  Use the value specified by glibc and Linux.
    
    Add _BSD_VISIBLE given FreeBSD also provides this clock identifier.

Diff:
---
 newlib/libc/include/time.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/newlib/libc/include/time.h b/newlib/libc/include/time.h
index a2df4f7fd87d..58c5066edf38 100644
--- a/newlib/libc/include/time.h
+++ b/newlib/libc/include/time.h
@@ -293,6 +293,12 @@ extern "C" {
 
 #endif
 
+#if _BSD_VISIBLE || __GNU_VISIBLE
+
+#define CLOCK_TAI		(11)
+
+#endif
+
 #if defined(_POSIX_CPUTIME)
 
 /* Accessing a Process CPU-time CLock, P1003.4b/D8, p. 55 */