[sane-devel] Found: why Sane make barfed under RH6.1

[Max Ushakov]

On Tue, Mar 12, 2002 at 11:33:38PM -0500, Gene Heskett wrote:

> On Tuesday 12 March 2002 08:32 pm, Douglas Gilbert wrote:
> >john meshkoff wrote:

[skip]

> >John,
> >The kernel compiles the sg driver (either built-in or a module)
> >against the /<kernel_source_root>/include/scsi/sg.h header.
> >It would be difficult (but not impossible) to get that file
> >"out of sync" with the /<kernel_source_root>/drivers/scsi/sg.c
> >file. I am the maintainer of those 2 files.
> >
> >SANE builds against /usr/include/scsi/sg.h which is maintained
> >by the glibc people. Linux kernel source and glibc are
> > distributed (almost) independently. Files such as sg.h are why
> > "almost" is needed in the previous sentence :-) There is not
> > much I can do about this contention other than point it out to
> > people.
> >
> >Doug Gilbert
> 
> Is there some 'carved in stone' rule that says he can't take the 
> sg.h from his kernel tree and put it in the usr/includes tree?
> 
> ISTR I ran into a similar problem while trying to build something 
> (taper-6.9b maybe?) quite a ways back to the log, as in year+, 
> and wound up putting the kernel includes I needed right on top of 
> the ones that were being a problem child.  IIRC it worked ok for 
> that compile, and I can't for the life of me recall whether I 
> ever undid that fix or not.  I don't think I did, and between 
> then and the install of RH7.2 I built quite a few other things 
> from scratch.

Hi,

I seem to recall that older RedHat versions (or kernel versions,
or both?) even had symlinks like
   /usr/include/linux -> /usr/src/linux/include/linux and
   /usr/include/asm -> /usr/src/linux/include/asm
Older means here probably RH 4.x and kernel 1.2.

So maybe it is still correct to use all kernel includes instead
of the corresponding glibc includes.

--Max Ushakov.