unable to generate sdl3 bindings. error during expansion of define-accessors

[benbot]

There's a macro expansion error with define-accessors it seems

; file: /home/benbot/dev/clame/ffi.lisp
; in: AUTOWRAP:C-INCLUDE (REL-PATH "./ffi/clibs.h")
;     (AUTOWRAP:C-INCLUDE (SDL3-FFI::REL-PATH "./ffi/clibs.h") :SPEC-PATH
;                         "./specs/")
; --> EVAL-WHEN 
; ==>
;   (AUTOWRAP:DEFINE-ACCESSORS (:UNION (SDL3-FFI::_X_EVENT))
;                              #<PACKAGE "SDL3-FFI">)
; 
; caught ERROR:
;   (during macroexpansion of (AUTOWRAP:DEFINE-ACCESSORS (:UNION #) ...))
;   invalid number of arguments: 0

; ==>
;   (AUTOWRAP:DEFINE-ACCESSORS SDL3-FFI::X-EVENT #<PACKAGE "SDL3-FFI">)
; 
; caught ERROR:
;   (during macroexpansion of (AUTOWRAP:DEFINE-ACCESSORS X-EVENT ...))
;   invalid number of arguments: 0

From what I can tell, c2ffi generates the spec files correctly, so this is probably an autowrap issue.