Re: compiler error by pcc

[Iain Hibbert <plunky%rya-online.net@localhost>]

On Fri, 20 Apr 2012, Toru Nishimura wrote:

> Hi,
>
> I have just tried to build NetBSD 6.0_BETA i386 kernel with pcc and
> found the compiler fails at a certain line.
>
> $ build.sh -V HAVE_PCC=yes -V USETOOLS_PCC=yes tools
> $ build.sh kernel=GENERIC
>    sys/dev/usb/uslsareg.h, line 170: array size not constant
>
> The offending line in "sys/dev/usb/uslsa.c" is;
>
>    CTASSERT(offsetof(struct slsa_cpr, uniProvName[0]) == 60);
>    At a glance the code seems ok.  Changing it to (more natural) form solved
> pcc compile error.
>
>    CTASSERT(offsetof(struct slsa_cpr, uniProvName) == 60);
>
> It's a variable length array.  Not sure the original line is legal or not.

I don't see why it shouldn't be, though this seems a context issue.. I
have filed a bug report upstream for that, see

   http://pcc.ludd.ltu.se/jira/browse/PCC-391

regards,
iain