Quoting P Purkayastha <ppurka@...>:

> On Tue, 07 Jun 2011 03:18:51 +0800, Francois Bissey
> <fbissey@...> wrote:
>
>>> Hi,
>>>
>>>    I installed sage and also gap via the sage-for-gentoo overlay on a
>>> Gentoo linux system (64 bit installation). It turned out that gap
>>> installed a plugin /usr/share/vim/vimfiles/plugin/gap_debug.vim where
>>> some keybindings are defined to help debug gap programs.
>>>
>>> First, I think this file should go under
>>> /usr/share/vim/vimfiles/ftplugin directory since it applies only to gap
>>> files. Secondly, the files define some keybindings without allowing for
>>> the user to override those keybindings in ~/.vimrc.
>>>
>>> I am attaching a patch which defines a global vim variable. If the user
>>> sets that variable in ~/.vimrc, then this gap plugin will not be read.
>>> This is one way I think the plugin can be made to not supersede user
>>> settings.
>>>
>>> If there is some other way of overriding that plugin file, please let me
>>> know.
>>>
>> Hi,
>>
>> thanks for the info. It looks like you have found something that is  
>> installed
>> by "automagic". Not being a fan of vi I don't have it installed and 
>> that  vim
>> file is not installed here. We may need to put it under useflag control.
>> I think we may adopt your patch until someone more knowledgeable in vim
>> tell us that's the wrong way of doing things.
>>
>> Francois
>>
>
> Hi Francois,
>
>    I am not surprised that the file debug_gap.vim is not installed in your
> system. The installation of this file is handled by the vim-syntax
> useflag. This useflag also handles the installation of other useful vim
> files.
>
>    One option would be to introduce the debug useflag for gap and install
> this debug_gap.vim file if both vim-syntax and debug flags are on. And,
> during the src_prepare apply the patch to debug_gap.vim. I can provide you
> an updated ebuild if you so desire.

Hi,

I need to take more care when I check the ebuilds before 8am. Yes of course
there is a vim-syntax flag! I don't think we need to overcomplicate 
things with
an extra debug flag. On the other hand being able to override the plugin is a
very good idea. So unless something more refined can be done I think I'll just
adopt your patch.

Francois