config.h

// SPDX-FileCopyrightText: 2026 Erin Catto
// SPDX-License-Identifier: MIT
 
#pragma once
 
// Box2D compile-time options.
//
// Normally set by the CMake BOX2D_* options. If you build Box2D without its
// CMake (dropping the sources into another project), set them here so the
// library and your code agree. Edit this file, or keep your settings elsewhere
// and point Box2D at them from your build:
//
//   #define BOX2D_USER_CONFIG "my_box2d_config.h"
//
// A define passed on the compiler command line still wins over this file.
 
// Large world mode. Stores world positions in double precision. Affects ABI.
// #define BOX2D_DOUBLE_PRECISION
 
// Build the scalar fallback instead of AVX2/SSE2/NEON.
// #define BOX2D_DISABLE_SIMD
 
// Enable internal validation in debug builds.
// #define BOX2D_VALIDATE
 
// Decorate the public API with your own export macro instead of Box2D's
// box2d_EXPORTS/BOX2D_DLL scheme, for example when compiling Box2D into another
// shared library. A single value cannot switch between dllexport and dllimport,
// so this suits embedding more than shipping Box2D as its own DLL.
// #define BOX2D_EXPORT MYENGINE_API