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Re: source and compiled file installtion locations

From: David Pirotte
Subject: Re: source and compiled file installtion locations
Date: Sun, 6 May 2018 19:17:42 -0300

Hi Chris,

> On Sat, 5 May 2018 21:03:14 -0300
> David Pirotte <address@hidden> wrote:
> > Hello Guilers,
> >   
> > > 1-        no --use-guile-site
> > > 
> > > in this case, imo, locations should be
> > > 
> > >   $(datarootdir)/<project-name>   [ source  
> > 
> > FWIW,
> > 
> > This is what guile-gnome does, and it also does it in $(libdir),
> > $(includedir) ...,
> > 
> > It does it using guile-gnome API version, not guile effective version, 
> > which I
> > also think 'projects' should do, so currently, guile-gnome pure scheme 
> > modules
> > land in:
> > 
> >     $(datarootdir)/guile-gnome-2
> > 
> >     [ except for the doc, installed in
> >     [       $(docdor)/guile-gnome-platform/
> > 
> > The only module that guile-gnome installs in $(datarootdir)/guile/site (and 
> > not
> > $(datarootdir)/guile/site/GUILE_EFFECTIVE_VERSION as I also claim we should 
> > not
> > do this) is gnome-2, a module that users import to 'inform' guile of 
> > source, lib
> > locations (which they also can do sing the guile-gnome-2 script ...)  

> Instead of using the project's $(libdir), $(datarootdir), and so forth,
> I use pkgconfig to interogate guile-2.2.pc or guile-2.0.pc, and install
> source (.scm) files in its revealed 'sitedir' and compiled (.go) files
> in its revealed 'siteccachedir', with the base project module name
> added to the path in each case.  That way, even if the project
> (including any of its shared library files) are installed in, say,
> the /usr/local prefix, the scheme files are installed in the correct
> prefix for guile.

Yes, we all do this, as said in my first email, though we generally use 
defined by the guile m4 macros instead, GUILE_SITE .... for those who would not
know, the complete set of these variables is also in %guile-build-info ...

But as I wrote in the first email as well, I believe this not the right thing 
to do:
(1) it does not respect GNU standards (without the user consent, to me this is
wrong) and (2) because, and that is a real problem, it disrespect --prefix if 
(it is very often given), and Daniel Llorens recently complained about this (wrt
guile-lib), and I agree with him ...

So I started to think a bit more about this :), and came to the conclusion that
unless the user explicitly ask to 'disrespect' the GNU standards (filesystem),
through an option, --with-guile-site or --use-guile-site [1], all projects 
respect it, which is what guile-gnome does ... This way, both --prefix and/or
--use-guile-site would work ... This approach actually correctly honors all 


[1]     I asked on #autotools, and they answered that although the manual 
        --with-* is for enabling external libraries, they actually use this 
        for 'what ever...' :)

        I still thnk --use-guile-site is better though

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