patch 8.1.1313: warnings for using localtime() and ctime()
Problem: Warnings for using localtime() and ctime().
Solution: Use localtime_r() if available. Avoid using ctime().
diff --git a/src/undo.c b/src/undo.c
index 1d26144..2f1924c 100644
--- a/src/undo.c
+++ b/src/undo.c
@@ -3110,11 +3110,19 @@
u_add_time(char_u *buf, size_t buflen, time_t tt)
{
#ifdef HAVE_STRFTIME
+# ifdef HAVE_LOCALTIME_R
+ struct tm tmval;
+# endif
struct tm *curtime;
if (vim_time() - tt >= 100)
{
curtime = localtime(&tt);
+# ifdef HAVE_LOCALTIME_R
+ curtime = localtime_r(&tt, &tmval);
+# else
+ curtime = localtime(&tt);
+# endif
if (vim_time() - tt < (60L * 60L * 12L))
/* within 12 hours */
(void)strftime((char *)buf, buflen, "%H:%M:%S", curtime);