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* Multiple Versions of Packages?
@ 2013-12-07 11:13 John Darrington
  2013-12-07 11:25 ` Andreas Enge
  0 siblings, 1 reply; 3+ messages in thread
From: John Darrington @ 2013-12-07 11:13 UTC (permalink / raw)
  To: guix-devel

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I'm trying to package Octave.

It seems that it needs Texinfo to build.  Furthermore, it does not work with Texinfo 5.2 which
is what we have in guix.   I looked at patching it, but it would be non-trivial.

I suspect there is still quite a bit of software in the wild that does not work with Texinfo 5.x
Can we have Texinfo 5 and Texinfo 4 concurrently in guix?


J'

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^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: Multiple Versions of Packages?
  2013-12-07 11:13 Multiple Versions of Packages? John Darrington
@ 2013-12-07 11:25 ` Andreas Enge
  2013-12-07 11:33   ` Ludovic Courtès
  0 siblings, 1 reply; 3+ messages in thread
From: Andreas Enge @ 2013-12-07 11:25 UTC (permalink / raw)
  To: John Darrington; +Cc: guix-devel

On Sat, Dec 07, 2013 at 12:13:57PM +0100, John Darrington wrote:
> Can we have Texinfo 5 and Texinfo 4 concurrently in guix?

Yes, without problem. You may add a variable texinfo-4; with a bit of
luck, it can simply inherit from texinfo with a few added modifications.
You may have a look at Qt 4 and 5 for inspiration.

Andreas

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: Multiple Versions of Packages?
  2013-12-07 11:25 ` Andreas Enge
@ 2013-12-07 11:33   ` Ludovic Courtès
  0 siblings, 0 replies; 3+ messages in thread
From: Ludovic Courtès @ 2013-12-07 11:33 UTC (permalink / raw)
  To: Andreas Enge; +Cc: guix-devel

Andreas Enge <andreas@enge.fr> skribis:

> On Sat, Dec 07, 2013 at 12:13:57PM +0100, John Darrington wrote:
>> Can we have Texinfo 5 and Texinfo 4 concurrently in guix?
>
> Yes, without problem. You may add a variable texinfo-4; with a bit of
> luck, it can simply inherit from texinfo with a few added modifications.
> You may have a look at Qt 4 and 5 for inspiration.

Indeed, you can really choose what to put in the build environment.
See ‘bison-for-tests’ as another example, in flex.scm.

As an end user, you could choose to have different profiles:

  $ guix package -i texinfo -i guile
  # installs Texinfo 5.2, Guile 2.0.9

  $ guix package -p old-times -i texinfo-4.3 -i guile-1.8.8
  # installs those under ‘old-times’

Ludo’.

^ permalink raw reply	[flat|nested] 3+ messages in thread

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2013-12-07 11:13 Multiple Versions of Packages? John Darrington
2013-12-07 11:25 ` Andreas Enge
2013-12-07 11:33   ` Ludovic Courtès

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