emacs-29 58b8ed8b55: ; Avoid compilation warning on MS-Windows

[Eli Zaretskii]

branch: emacs-29
commit 58b8ed8b55cd3c864823c6d2fbfdd12bcfe43247
Author: Eli Zaretskii <eliz@gnu.org>
Commit: Eli Zaretskii <eliz@gnu.org>

    ; Avoid compilation warning on MS-Windows
    
    * src/timefns.c (sys_clock): Declare, to avoid compilation
    warning.
---
 src/timefns.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/timefns.c b/src/timefns.c
index 9beec1ce38..dcc6403fd9 100644
--- a/src/timefns.c
+++ b/src/timefns.c
@@ -40,6 +40,10 @@ along with GNU Emacs.  If not, see 
<https://www.gnu.org/licenses/>.  */
 #include <stdio.h>
 #include <stdlib.h>
 
+#ifdef WINDOWSNT
+extern clock_t sys_clock (void);
+#endif
+
 #ifdef HAVE_TIMEZONE_T
 # include <sys/param.h>
 # if defined __NetBSD_Version__ && __NetBSD_Version__ < 700000000