File tmux-socket-path.patch of Package tmux.openSUSE_Backports_SLE-12
Index: tmux-2.5/tmux.c
===================================================================
--- tmux-2.5.orig/tmux.c
+++ tmux-2.5/tmux.c
@@ -119,7 +119,7 @@ make_label(const char *label)
if ((s = getenv("TMUX_TMPDIR")) != NULL && *s != '\0')
xasprintf(&base, "%s/tmux-%ld", s, (long)uid);
else
- xasprintf(&base, "%s/tmux-%ld", _PATH_TMP, (long)uid);
+ xasprintf(&base, "/run/tmux/%ld", (long)uid);
if (mkdir(base, S_IRWXU) != 0 && errno != EEXIST)
goto fail;