Procedural macro for defining global constructor/destructor functions.
This provides module initialization/teardown functions for Rust (like
__attribute__((constructor)) in C/C++) for Linux, OSX, and Windows via
the #[ctor] and #[dtor] macros.
This library works and has been tested for Linux, OSX and Windows. This
library will also work as expected in both bin and cdylib outputs,
ie: the ctor and dtor will run at executable or library
startup/shutdown respectively.
This library currently requires Rust > 1.31.0 at a minimum for the
procedural macro support.