--- tmux-3.3/tmux.c	2022-05-14 21:04:35.000000000 +0200
+++ tmux-3.3/tmux.c	2022-06-04 09:08:04.005234096 +0200
@@ -198,16 +198,16 @@
 
 	expand_paths(TMUX_SOCK, &paths, &n, 1);
 	if (n == 0) {
-		xasprintf(cause, "no suitable socket path");
-		return (NULL);
+		/* SUSE specific hack - remain compatible with previously used socket path */
+		xasprintf(&base, "/run/tmux/%ld", (long)uid);
+	} else {
+		path = paths[0]; /* can only have one socket! */
+		for (i = 1; i < n; i++)
+			free(paths[i]);
+		free(paths);
+		xasprintf(&base, "%s/tmux-%ld", path, (long)uid);
+		free(path);
 	}
-	path = paths[0]; /* can only have one socket! */
-	for (i = 1; i < n; i++)
-		free(paths[i]);
-	free(paths);
-
-	xasprintf(&base, "%s/tmux-%ld", path, (long)uid);
-	free(path);
 	if (mkdir(base, S_IRWXU) != 0 && errno != EEXIST) {
 		xasprintf(cause, "couldn't create directory %s (%s)", base,
 		    strerror(errno));
--- tmux-3.3/tmux.h	2022-05-14 21:04:35.000000000 +0200
+++ tmux-3.3/tmux.h	2022-06-04 09:04:55.829136130 +0200
@@ -74,7 +74,7 @@
 #define TMUX_CONF "/etc/tmux.conf:~/.tmux.conf"
 #endif
 #ifndef TMUX_SOCK
-#define TMUX_SOCK "$TMUX_TMPDIR:" _PATH_TMP
+#define TMUX_SOCK "$TMUX_TMPDIR:"
 #endif
 #ifndef TMUX_TERM
 #define TMUX_TERM "screen"
Nur in b/tmux-3.3: tmux.h.orig.