SDL_mixer: cmake: by default, disable building FLAC++

From 866989e3b49cff85e19e6c7a2bd420cac8efe68a Mon Sep 17 00:00:00 2001
From: Anonymous Maarten <[EMAIL REDACTED]>
Date: Sun, 9 Oct 2022 17:25:45 +0200
Subject: [PATCH] cmake: by default, disable building FLAC++

---
 CMakeLists.txt | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 42531895..2091b431 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -507,7 +507,8 @@ if(SDL2MIXER_FLAC_LIBFLAC)
         set(BUILD_SHARED_LIBS "${SDL2MIXER_FLAC_LIBFLAC_SHARED}")
         set(INSTALL_CMAKE_CONFIG_MODULE OFF CACHE BOOL "Disable libflac installation")
         set(WITH_OGG OFF CACHE BOOL "Disable finding ogg using `find_package` (we have vendored it)")
-        set(BUILD_TESTS OFF CACHE BOOL "Build FLAC tests")
+        set(BUILD_CXXLIBS OFF CACHE BOOL "Build FLAC++")
+        set(BUILD_TESTING OFF CACHE BOOL "Build FLAC tests")
         set(INSTALL_MANPAGES OFF CACHE BOOL "Install FLAC manpages")
         message(STATUS "Using vendored libflac")
         sdl_check_project_in_subfolder(external/flac libflac SDL2MIXER_VENDORED)