Re: [Xen-devel] [PATCH v2] docs: make 'gmake dist-docs' work

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Mon, 2013-05-13 at 13:11 +0100, Christoph Egger wrote:
> On 13.05.13 13:34, Ian Campbell wrote:
> > On Mon, 2013-05-13 at 12:25 +0100, Christoph Egger wrote:
> >> On 13.05.13 12:44, Ian Campbell wrote:
> >>> On Fri, 2013-05-10 at 15:07 +0100, Christoph Egger wrote:
> >>>> doc: buildsystem fixes
> >>>>
> >>>> - use correct pathes (make gmake dist-docs from toplevel directory work)
> >>>
> >>> This ("make dist-docs") seems to work for me, how does it fail for you?
> >>
> >> On the toplevel directory '../xen' and '../config' point to
> >> non-existent directories.
> >> On the toplevel directory './gen-html-index' does not exist.
> > 
> > I'm confused. By toplevel you mean "xen.git" and not "xen.git/docs",
> > right?
> 
> Yes.
> 
> > make dist-docs turns into "make -C docs install" (with DESTDIR set) so
> > at the time ../xen or ../config are evaluated you should be in
> > xen.git/docs.
> >
> > Or are you saying that you are extracting the docs subdir out to
> > elsewhere? Perhaps you are doing an out of tree build or something else
> > complex?
> 
> No.
> My build procedure is:
> 
> - run configure
> - gmake -jN dist-xen
> - gmake -jN dist-tools
> - gmake dist-docs
> 
> > I'm not suggesting your changes are wrong. I'd just like to understand
> > the breakage...
> 
> I retried w/o my patch to get the error message:
> 
> xen.git$ gmake dist-docs
> [...]
> ./xen-headers -O html/hypercall \
>         -T 'arch-x86_64 - Xen public headers' \
>         -X arch-x86_32 -X xen-x86_32 -X arch-arm \
>         ../xen include/public include/xen/errno.h
> gmake[1]: ./xen-headers: Command not found
> gmake[1]: *** [html/hypercall/index.html] Error 127
> gmake[1]: Leaving directory `/home/chegger/xen.git/docs'
> gmake: *** [install-docs] Error 2
> xen.git$
> 
> Since I am on the toplevel directory (or the shell at least)
> calling ./xen-headers can't be found, of course. That's my thinking.

I think you are mistaken, since the 
        Leaving directory `/home/chegger/xen.git/docs'
tells us that gmake previously entered this directory. That is how make
(not just gmake) normally operates and is what "make -C docs" does.

Prior to your recent patch the invocation of ./xen-headers was via:
        perl -w -- ./gen-html-index
Which is not consistent with your logs above. Do you have some other
local patches which remove the "perl -w -- " prefix? 

If you cropped it from the logs by mistake then the "Command not found"
likely refers to "perl" and not "./xen-headers".

If you are trying to execute ./gen-html-index directly then the "Command
not found" might be down to the shebang in the script which refers
to /usr/bin/perl, which doesn't exist for you.

On Linux that would come out as "Bad interpreter", but NetBSD may differ
I suppose.

Ian.


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