Re: [Chicken-hackers] [PATCH] Ensure chicken-install honors -prefix when using -keep-installed (#1144)

[felix . winkelmann]

> Hi all,
>
> Attached is a pretty straightforward patch to fix #1144.
> The problem is that we're using "extension-information"
> while walking the egg list to see which eggs already exist.
> If extension-information returns a non-#f value, it will
> be removed from the list.
>
> When using -prefix, extension-information will still look
> in the system-wide directory.  Instead, we had already copied
> the body of extension-information into "ext-version" so we
> can determine the version of an egg under the prefix.  This
> patch simply re-uses that procedure to determine if the egg
> exists under the installation directory.
>
> I've done the following tests:
>
> - Installing the egg in the prefix with -keep-installed while it's
>    not installed.  It's installed.
> - Installing the egg in the prefix with -keep-installed while it
>    was already installed.  It's not installed.
> - Installing the egg system-wide, then running chicken-install
>    with -keep-installed under a prefix.  It's installed.
>

Since the egg-installation changed considerably in C5, I suggest to apply the
patch only in C4. I'm very much for dropping -prefix (and CHICKEN_PREFIX and
the likes) completely.


felix