Re: Nyacc and guile-nearly-3.0 (progress report)

[tomas]

On Mon, Dec 02, 2019 at 06:28:53AM -0800, Matt Wette wrote:
> Look at etc/README.  Maybe edit etc/configure.ac and rerun as in the README.

Hm. Same confusion. Adding 3.0 to GUILE_PKG, like so:

  GUILE_PKG([3.0 2.2 2.0])

yields, at configure time:

  tomas@trotzki:~/src/guile/nyacc$ ./configure
  checking for pkg-config... /usr/bin/pkg-config
  checking pkg-config is at least version 0.9.0... yes
  configure: checking for guile 3.0
  configure: found guile 3.0
  checking for guile... /usr/local/bin/guile
  checking for Guile version >= 3.0... configure: error: Guile 3.0 required, 
but 2.9.5 found

Inserting 2.9.5 in configure.ac's GUILE_PKG, like so:

  GUILE_PKG([2.9.5 2.2 2.0])

yields, again at configure time:

  tomas@trotzki:~/src/guile/nyacc$ ./configure
  checking for pkg-config... /usr/bin/pkg-config
  checking pkg-config is at least version 0.9.0... yes
  configure: checking for guile 3.0
  configure: found guile 3.0
  checking for guile... /usr/local/bin/guile
  checking for Guile version >= 3.0... configure: error: Guile 3.0 required, 
but 2.9.5 found
  tomas@trotzki:~/src/guile/nyacc$ ( cd etc && autoconf -o ../configure )
  tomas@trotzki:~/src/guile/nyacc$ ./configure
  checking for pkg-config... /usr/bin/pkg-config
  checking pkg-config is at least version 0.9.0... yes
  configure: checking for guile 2.9.5
  configure: found guile 2.9.5
  checking for guile... /usr/local/bin/guile
  configure: error: found development files for Guile 2.9.5, but 
/usr/local/bin/guile has effective version 3.0

It seems I've got a schizophrenic Guile. It somehow reports
an "effective version" 3.0 (the pkg config file in /usr/local/lib
is a guile-3.0.pc, actually), but if you ask guile itself, it
reports 2.9.5.

I don't exactly know where configure has this "effective version"
from, but I dimly remember Andy mumbling about setting Guile's
effective version to 3.0, since 2.9.5 is already a pre-3.

Hmmm. I'll try to poke at it some more tomorrow...

Cheers & thanks
-- tomás

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