SDL_mixer: mpg123: namespace SIZEOF_OFF_T cache variable

SDL Commits
1 
From fb314863c02c825aba25d3dbc6799e6ace3fe175 Mon Sep 17 00:00:00 2001
From: Anonymous Maarten <[EMAIL REDACTED]>
Date: Sun, 7 Dec 2025 19:54:38 +0100
Subject: [PATCH] mpg123: namespace SIZEOF_OFF_T cache variable

---
 external/mpg123 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/external/mpg123 b/external/mpg123
index 2eccedc8..68b66034 160000
--- a/external/mpg123
+++ b/external/mpg123
@@ -1 +1 @@
-Subproject commit 2eccedc84ac520f0d85dd1bc86bc8dad10c2235b
+Subproject commit 68b66034fb1d72647d89cb79a0eeabc58f1ec04f