Provided by: libsdl3-doc_3.2.4+ds-2_all 
NAME
SDL_REQUIRES - Wrapper around Clang thread safety analysis annotations.
HEADER FILE
Defined in SDL3/SDL_mutex.h
SYNOPSIS
#include "SDL3/SDL.h"
#define SDL_REQUIRES(x) .BI SDL_THREAD_ANNOTATION_ATTRIBUTE__(requires_capability(x))
DESCRIPTION
Please see https://clang.llvm.org/docs/ThreadSafetyAnalysis.html#mutex-h
AVAILABILITY
This macro is available since SDL 3.2.0.