I'm seeing an odd behaviour when loading shared libraries under slime/swank. From a command line REPL:
* (asdf:load-system :cffi)
T
* (cffi:load-foreign-library "s:/src/lla/lib/libopenblas-0.3.21.dll")
#<CFFI:FOREIGN-LIBRARY LIBOPENBLAS-0.3.21.DLL-518 "libopenblas-0.3.21.dll">
all good.
The same from emacs/slime/swank just hangs. The workaround is to go to the *inferior-lisp* buffer and press enter. After doing that the load unhangs and things proceed normally.
Any ideas? I'll report this to the slime folks if it turns out to be a bug, and it looks like it to me, but before I do thought I'd check here first to see. This is on MS Windows, if that has anything to do with it.