Well the method with the code you give was compiled without any problem in my image (Pharo #30851 with FFI loaded with configuration browser as explained in the other thread).
Perhaps this is related to your bug in the other thread where you were (probably) missing a package ? 2014-07-10 18:15 GMT+02:00 Annick Fron <i...@afceurope.com>: > > Hi, > > I made another attempt , a very basic one on window : trying to use the > abs method in the standard lib. > > abs: aNumber > > <apicall: int 'abs' (int) module: 'c:\windows\system32\msvcr100.dll'> > self externalCallFailed > > I get the error ‘cannot return the given type’. > > But now if I use long as argument and long as return it works. > > Annick >
