SDL: fix HAVE_SDL_AUDIO flag of CMakeLists.txt II.

From 3dba2a73f11a583ba5cb4d5da37218b45850787f Mon Sep 17 00:00:00 2001
From: pionere <[EMAIL REDACTED]>
Date: Wed, 12 Jan 2022 17:17:48 +0100
Subject: [PATCH] fix HAVE_SDL_AUDIO flag of CMakeLists.txt II.

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

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 65bc39db66a..1a6017a1f96 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -981,12 +981,14 @@ if(SDL_AUDIO)
     file(GLOB DUMMYAUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/dummy/*.c)
     set(SOURCE_FILES ${SOURCE_FILES} ${DUMMYAUDIO_SOURCES})
     set(HAVE_DUMMYAUDIO TRUE)
+    set(HAVE_SDL_AUDIO TRUE)
   endif()
   if(SDL_DISKAUDIO)
     set(SDL_AUDIO_DRIVER_DISK 1)
     file(GLOB DISKAUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/disk/*.c)
     set(SOURCE_FILES ${SOURCE_FILES} ${DISKAUDIO_SOURCES})
     set(HAVE_DISKAUDIO TRUE)
+    set(HAVE_SDL_AUDIO TRUE)
   endif()
 endif()