SDL_image: cmake+jpeg: actually export libjpeg symbols when building a dll

From a9a3efe1bf199ffabdffae9a0d4abaaa2bee1ecd Mon Sep 17 00:00:00 2001
From: Anonymous Maarten <[EMAIL REDACTED]>
Date: Thu, 14 Dec 2023 21:08:45 +0100
Subject: [PATCH] cmake+jpeg: actually export libjpeg symbols when building a
 dll

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

diff --git a/external/jpeg b/external/jpeg
index bc27d050..779556c0 160000
--- a/external/jpeg
+++ b/external/jpeg
@@ -1 +1 @@
-Subproject commit bc27d050625f126dcba73ae5b731272de1a89dc1
+Subproject commit 779556c0121c8f69bc3ffd792e661afc879ab27b