Re: distcheck does 'chmod a-w' - leads to mkdir "permission denied"

[Paul Jakma]

On Fri, 3 Mar 2017, Paul Smith wrote:

> On Fri, 2017-03-03 at 17:09 +0000, Paul Jakma wrote:
> > Well, it's due to the distributed 'doc/quagga.info' being slightly
> > older than the (built by automake) doc/defines.texi.
>
> I don't understand this: if doc/defines.texi is needed by quagga.info
> then why doesn't quagga.info depend on it?

The dependencies seem correct:

$ make quagga.info
  MAKEINFO quagga.info
$ touch defines.texi
$ make quagga.info
  MAKEINFO quagga.info
$ touch defines.texi.in
$ make quagga.info
cd .. && /bin/sh ./config.status doc/defines.texi
config.status: creating doc/defines.texi
  MAKEINFO quagga.info

> And if it does depend on it, then how can doc/defines.texi be newer 
> without rebuilding quagga.info (when creating the dist file, not when 
> building the dist file)?

It's because doc/defines.texi gets generated in the builddir when 
configure is run.

$ make distclean
test -z "quagga.dvi quagga.pdf quagga.ps quagga.html" \
|| rm -rf quagga.dvi quagga.pdf quagga.ps quagga.html
rm -rf .libs _libs
rm -rf quagga.t2d quagga.t2p
rm -f *.lo
rm -f vti.tmp* ./version.texi.tmp*
test -z "defines.texi" || rm -f defines.texi
test . = "." || test -z "" || rm -f
rm -f Makefile
$ ./configure > /dev/null
# defines.texi is back:
$ ls doc/defines.texi
doc/defines.texi

So:

- the dist tarball are unpacked to RO source dir

- configure is run in another build dir

- defines.texi is generated in the build-dir doc/ by automake (though it
  was distributed, so that isn't necessary in the abstract)

- So quagga.info must be updated of course

- but automake defaults to building the info sources in the source-dir,
  which is of course RO as part of distcheck

- Boom

Is what it seems like to me.

regards,
--
Paul Jakma | address@hidden | @pjakma | Key ID: 0xD86BF79464A2FF6A
Fortune:
QOTD:
        "A child of 5 could understand this!  Fetch me a child of 5."