HPLIP does not build with CUPS 1.6.1 or newer

[Till Kamppeter]

The internal data structure (struct _ipp_s) of ipp_t in the CUPS API (cups/ipp.h) is private (not intended to be directly accessed from non-CUPS programs). In CUPS 1.6.0 and earlier it was still accessible as it was unconditionally available in cups/ipp.h. From CUPS 1.6.1 on it is packed into a conditional making it only available for CUPS' own programs.

The correct solution is not using this internal structure any more, the quick workaround is compiling HPLIP with the "-D_IPP_PRIVATE_STRUCTURES=1" compiler argument.

I have found the problem in prnt/cupsext/cupsext.c but it probably occurs also in other files.

HPLIP is 3.12.6 on Ubuntu Quantal.

[Sanjay Kumar (sanjay-kumar14)]

Hello Till,

Thanks for the update. We will make use of the accessor functions in the future HPLIP versions as suggested in CUPS ipp.h, however for our next release HPLIP-3.12.10 we have enabled the _IPP_PRIVATE_STRUCTURES macro.

Thanks,
Sanjay