=name-kinds+ is used in read-time during compilation but really defined

[Yehouda]

CFFI version: apparent 0.21.0 (in quicklisp of 27 Apr 2020)
Lisp version : LispWorks, all versions
Operation system: any

asdf system: cffi/c2ffi-generator

In src/c2ffi/generators.lisp, it defines a constant +name-kinds+ (by define-contant that expand to defconstant), and then use it in the next form inside #., i.e. at read-time. But when you compile the file the constant definition doesn't necessarily defines the constant for the reader, so the reader can error.

The definition of +name-kinds+ needs to be wrapped by (eval-when (compile load eval) to be compliant with the standard.

http://www.lispworks.com/documentation/HyperSpec/Body/m_defcon.htm#defconstant

[Luís Oliveira (luismbo)]

https://github.com/cffi/cffi/commit/b20048af3f0808d5a029c468003cb4f76493fa6b