On Wed, Nov 02, 2016 at 04:27:21PM -0400, Antoine Beaupré wrote:
> On 2016-11-02 16:10:14, Helmut Grohne wrote:
> > On Wed, Nov 02, 2016 at 02:37:35PM -0400, Antoine Beaupré wrote:
> >> Hmm... I am not very familiar with cross-compiling, but this looks to me
> >> like a toolchain issue. pv doesn't do anything particular to call "the
> >> wrong LD" - why should I have to pass a specific linker here?
> >
> > That's a good question. I was surprised by the need as well.
> >
> > Crucially, when cross compiling you need to prefix each and every build
> > tool with the host architecture triplet (DEB_HOST_GNU_TYPE). Typically,
> > autotools does that for you by prefixing every tool with $ac_tool_prefix.
> >
> >> in other words, why isn't this in dh_auto_build, dh_build, or make or
> >> wherever it should be down the stack?
> >
> > Because, normally autotools handles this. It just doesn't for pv.
> >
> >> Don't all gnu autoconf packages suffer from the same bug?
> >
> > pv's Makefiles rely on the make default value of LD instead of taking
> > that value from autoconf. So no, other autoconf packages that actually
> > use autoconf for determining LD, do not suffer from this issue.
> >
> > Quite likely, there is a more general solution to this problem than my
> > patch. I just didn't figure it out. One approach could be linking with
> > $CC rather than $LD as autotools supply a suitable $CC. If this change
> > works natively, it'll also work for cross compilation.
> 
> Thank you for the clarifications.
> 
> I guess the next step is whether there should be a patch sent upstream,
> what do you think?


If you've got a patch I would gladly receive it - thanks.


-- 
Andrew Wood

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