Hi Federico,
That is odd, on my Debian "wheezy" system, the debian packaged guile is a
symbolic link /usr/bin/guile to
/etc/alternatives/guile, which in turn is a symbolic link to
/usr/bin/guile-2.0 . What returns from the command "which guile" on your
system ?

The method I have tended to use, which may not be the ideal way, but works
for my purposes is
to create a dir, /usr/local/guile2 and then
./configure --prefix=/usr/local/guile2
make && make install

I like this method, as when further releases come out, for example 2.0.12,
I can simply create
another dir, for example, /usr/local/guile2012

I have geiser with emacs installed, so in my .emacs I have
(setq geiser-guile-binary "/usr/local/guile2/bin/guile")


Kind Regards,
Vernon Oberholzer


On Sat, Sep 13, 2014 at 12:52 PM, Federico Beffa <beffa@ieee.org> wrote:

> Hi,
>
> I'm on Debian 7.6 with guile-2.0.5 installed. I would like to install
> a newer version of guile. Therefore I downloaded 2.0.11 and installed
> in /usr/local with
>
> ./configure
> make
> sudo make install
>
> Everything appeared to be fine. However, with my surprise, when I
> started the newly installed guile with
>
> $ /usr/local/bin/guile
>
> I was greeted with
>
> GNU Guile 2.0.5-deb+1-3
> Copyright (C) 1995-2012 Free Software Foundation, Inc.
> ...
>
> which correspond to the version provided by the Debian package.
>
> Am I doing something wrong? Is it possible to have two guile versions
> on the same system?
>
> Regards,
> Fede
>
>