(null (sb-alien:sap-alien (sb-sys:int-sap 0) (* t)))
((alien (* t)) alien-pointer-to-anything-or-nil))
-(defun lisp-for-c-symbol (s)
- (let ((root (if (eql #\_ (char s 0)) (subseq s 1) s)))
- (intern (substitute #\- #\_ (string-upcase root)) :sb-posix)))
+(defun lisp-for-c-symbol (name)
+ (etypecase name
+ (list
+ (lisp-for-c-symbol (car name)))
+ (string
+ (let ((root (if (eql #\_ (char name 0)) (subseq name 1) name)))
+ (intern (substitute #\- #\_ (string-upcase root)) :sb-posix)))))
+
+;; Note: this variable is set in interface.lisp. defined here for
+;; clarity and so the real-c-name compile as desired.
+(defparameter *c-functions-in-runtime* nil)
+
+(defun real-c-name (name)
+ (let ((maybe-name
+ (etypecase name
+ (list
+ (destructuring-bind (name &key c-name options) name
+ (if c-name
+ c-name
+ (cond #+largefile
+ ((or (eql options :largefile)
+ (member :largefile options))
+ (format nil "~a_largefile" name))
+ (t
+ name)))))
+ (string
+ name))))
+ (if (member maybe-name *c-functions-in-runtime*
+ :test #'string=)
+ (format nil "_~A" maybe-name)
+ maybe-name)))
(defmacro define-call-internally (lisp-name c-name return-type error-predicate
&rest arguments)
`(sb-int:style-warn "Didn't find definition for ~S" ,c-name)))
(defmacro define-call (name return-type error-predicate &rest arguments)
- (let ((lisp-name (lisp-for-c-symbol name)))
+ (let ((lisp-name (lisp-for-c-symbol name))
+ (real-c-name (real-c-name name)))
`(progn
(export ',lisp-name :sb-posix)
(define-call-internally ,lisp-name
- ,name
+ ,real-c-name
,return-type
,error-predicate
,@arguments))))