Bug#288105: ioctls.h: ioctls.h does not define _IOT__IOTBASE_void on Hurd

[Samuel Thibault <samuel.thibault@ens-lyon.org>]

clone 288105 -1
retitle -1 Hurd doesn't permit non-constant structures as ioctl parameter
tags 288105 wontfix
thanks

Hi,

Jonathan Hogg, le Sat 01 Jan 2005 16:04:39 +0000, a écrit :
> when attempting to compile package heimdal and applying the patch to
> debian bug #113317 for said package, compile breaks for file
> build-tree/heimdal-0.6.3/lib/kafs/afssys.c of that package, with reason
> _IOT__IOTBASE_void undeclared. Its expanding the macro:
> #define VIOC_SYSCALL		_IOW('C', 1, void *)

Mmm, the problem is that defining _IOT__IOTBASE_void doesn't make sense:
here void means that the parameter is not a constant structure, and the
mig-based way that the Hurd uses to perform ioctls _requires_ constant
structures...  So there's no way to fix it, hence tagging wontfix so
that people know that defining _IOT__IOTBASE_void is _not_ the proper
way.

Of course, the real bug (which is not only about void*) is: how to pass
non-constant structures as ioctl parameters on the Hurd (poses problem
for OSS stuff too), hence cloning.

About the original problem (compiling heimdal), it looks like it was
patched and is now compiled for hurd-i386.

Samuel