[cffi-devel] trouble loading libraries on debian

[James Bielman]

hbabcockos1 at mac.com writes:

> I'm having trouble loading libraries using CFFI 0.9.0 on debian. Example:
>
> The test script:
>
> (defpackage #:test
>   (:use #:common-lisp
> 	#:cffi))
>
> (in-package #:test)
>
> (defun load-library ()
>   (define-foreign-library libc
>     (t (:default "libc")))
>   (use-foreign-library libc)
>   (format t "libc loaded~%"))
>
> (load-library)
>
> Gives:
> Unable to load foreign library: libc.so
>    [Condition of type LOAD-FOREIGN-LIBRARY-ERROR]

Taking a guess here, but I'd bet that your /usr/lib/libc.so is
actually a linker script.  I'm not sure what dlopen is defined to do
in this case, but you are probably better off loading "libc.so.6"
instead (although in practice I doubt you would ever need to really do
this since the Lisp implementation is likely to have already loaded
libc to begin with..)

James