On Sat, Nov 23, 2013 at 12:56 AM, Greg Bennett gwbennett@sentex.ca wrote:

At least I have a way forward: make up a simple c function - dear old Hello World will do. Compile a shared library containing it. Load that as you suggest. Use defcfun to give it a lisp name. Try calling that name.

As an aside: I had hoped that the tutorial would hold that sort of simple example.

I think it never occurred to us that the instructions on how to compile a shared library should be on the tutorial. I suppose it assumes you already have a shared library to start with. Where do you think that should be made more clear?

I cut+pasted segments of it into ccl version 1.9-r15972M (LinuxX8664) only to have it break in two places: section 4.7 when trying to call (set-curl-option-nosignal *easy-handle*

1. WITHOUT having executed the 2 progn's in that section (mistakenly

assuming that the function was built automatically) only to be told that there was no such function. Going back and executing the progn's seemed to fix that.

section 4.8 when executing (set-curl-option-url *easy-handle* "http://www.cliki.net/CFFI") only to be told The value "http://www.cliki.net/CFFI" is not of the expected type CCL:MACPTR

at which point I abandoned the tutorial.

Notice the preceding paragraph. That code is merely illustrative. See the "Returning to the current set-curl-option-url interface, here is what we must do..." bits that follow.

HTH,