Re: IBus and different GTK versions

[Ricardo Wurmus <rekado@elephly.net>]

Ricardo Wurmus <rekado@elephly.net> writes:

> 宋文武 <iyzsong@gmail.com> writes:
>
>>>> We can set 'GTK_EXE_PREFIX' to the '~/.guix-profile', and generate the
>>>> 'immodules.cache' files in a profile hook.  It will work for both gtk2
>>>> and gtk3 applications.
>
>>> Does this mean that GTK needs to be installed in the user’s profile for
>>> this to work?  I thought ‘GTK_EXE_PREFIX’ would change the path of
>>> ‘$libdir’ for *all* of GTK’s libraries.  It can only have one value, not
>>> a list of paths to look for libraries.
>
>> Yes, this require install GTK+ into user's profile.
>> Also, there is a 'GTK_DATA_PREFIX' in a same situation, which I think is
>> the only way to set the GTK+ 2 theme.
>
> Isn’t this a little too high a price to pay?  One can only install one
> (major) version of GTK+ into a profile, so when we begin propagating the
> GTK inputs users will run into conflicts.
>
> I would really like to avoid propagating GTK+ (although it may be a bad
> idea to have software depend on different minor versions of GTK+).  It
> would be very nice if only additional modules—such as explicitly
> installed themes and input method modules—would have to be installed to
> the profile.  Those who do not need themes or input methods would not
> need to be bothered with this at all.

I guess the question is: what would be the uglier fix?  Do we prefer to
force users to have GTK+ installed in their profiles, or are we okay
with patching the GTK+ sources such that additional environment
variables would be respected, allowing users to specify different
module directories for version 2 and version 3?

~~ Ricardo