###### (This is the documentation for SDL3, which is the current stable version. [SDL2](https://wiki.libsdl.org/SDL2/) was the previous version!) # SDL_THREAD_ANNOTATION_ATTRIBUTE__ Enable thread safety attributes, only with clang. ## Header File Defined in [](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_mutex.h) ## Syntax ```c #define SDL_THREAD_ANNOTATION_ATTRIBUTE__(x) __attribute__((x)) ``` ## Remarks The attributes can be safely erased when compiling with other compilers. To enable analysis, set these environment variables before running cmake: ```bash export CC=clang export CFLAGS="-DSDL_THREAD_SAFETY_ANALYSIS -Wthread-safety" ``` ---- [CategoryAPI](CategoryAPI), [CategoryAPIMacro](CategoryAPIMacro), [CategoryMutex](CategoryMutex)