I found the offending code. The original code is something like:
struct libusb_bos_dev_capability_descriptor *dev_capability
#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
[] /* valid C99 code */
#else
[0] /* non-standard, but usually working code */
#endif
;
This doesn't work with clang/TalkFFI. I assume based on the #defines it
uses the C99 notation which doesn't work. "Hardcoding" it to the
non-standard notation does work. E.g.:
struct libusb_bos_dev_capability_descriptor *dev_capability
//#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
// [] /* valid C99 code */
//#else
[0] /* non-standard, but usually working code */
//#endif
;
It seems that this was the only showstopper as TalkFFI just generated a
binding for the whole library w/o any problem.
I'll start experimenting now ...
CU,
Udo
On 24/03/15 17:33, kilon alios wrote:
If the library is big you can use TalkFFI (you will find it in
smalltalkhub) that automates the wrapping with nativeboost.
On Tue, Mar 24, 2015 at 4:58 PM, Udo Schneider
<udo.schnei...@homeaddress.de
<mailto:udo.schnei...@homeaddress.de>> wrote:
I guess not :-)
I'll try to wrap libUSB then.
I assume the future-proof way to use "a" FFI framework is to use the
NB notation? Do I remember correctly that the NB notation is
supposed to remain the same although the backend will change to
something more like traditional FFI?
So using NB notation w/o relying on the code generation is safe,
correct?
CU,
Udo
On 23.03.2015 16:15, Udo Schneider wrote:
All,
does anybody have some code or plugin to access USB ports with
Pharo?
Maybe something using libUSB or OpenUSB?
Thanks,
Udo
