https://github.com/realnc/SDL_audiolib/pull/48

--- SDL_audiolib-b2df2dfeddc692caa01fd1e1769f59b285912b87/src/aulib_log.h
+++ SDL_audiolib-b2df2dfeddc692caa01fd1e1769f59b285912b87/src/aulib_log.h
@@ -1,7 +1,7 @@
 // This is copyrighted software. More information is at the end of this file.
 #pragma once
 #include "aulib_config.h"
-#include <fmt/core.h>
+#include <fmt/format.h>
 
 namespace aulib {
 namespace log {