In your main .cpp file;

#define PALBULLET282_CPP // include the implementation
#include "palBullet282.hpp"

... then in every other one just ...

#include "palBullet282.hpp" // only include the interface

This is a fork of "Bullet 2 Stripped" which

1. Erwin Coumas forked (his own project) Bullet to strip out cruft
2. Peter LaValle forked the result of the above to make a CMake build

• ... to get somethig that worked with add_subdirectory(...) from within an outer project

3. Peter LaValle then used that version, with a Scala program, to make this single header variant

• this included some trivial renames and removal of duplicate static globals

The program is used to prepare palBullet282 which contains the whole physics library in one "stb-style" .hpp header.

Mainstream Bullet