SDL_mixer: Updated FLAC library location

SDL Commits
1 
From 1e62363ecaebb8e178c6ed19cc9bb88dff5688ae Mon Sep 17 00:00:00 2001
From: Sam Lantinga <[EMAIL REDACTED]>
Date: Sun, 22 May 2022 09:30:33 -0700
Subject: [PATCH] Updated FLAC library location

---
 configure    | 4 ++--
 configure.ac | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/configure b/configure
index 12fd17ed..021149bd 100755
--- a/configure
+++ b/configure
@@ -17367,8 +17367,8 @@ $as_echo "$have_flac_ver" >&6; }
             fi
         fi
     else
-        { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: *** Unable to find FLAC library (http://flac.sourceforge.net/)" >&5
-$as_echo "$as_me: WARNING: *** Unable to find FLAC library (http://flac.sourceforge.net/)" >&2;}
+        { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: *** Unable to find FLAC library (https://xiph.org/flac/)" >&5
+$as_echo "$as_me: WARNING: *** Unable to find FLAC library (https://xiph.org/flac/)" >&2;}
     fi
 fi
 
diff --git a/configure.ac b/configure.ac
index 2b5dec43..f48a832a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -783,7 +783,7 @@ if test x$enable_music_flac = xyes -a x$enable_music_flac_libflac = xyes; then
             fi
         fi
     else
-        AC_MSG_WARN([*** Unable to find FLAC library (http://flac.sourceforge.net/)])
+        AC_MSG_WARN([*** Unable to find FLAC library (https://xiph.org/flac/)])
     fi
 fi