Re: [krbdev.mit.edu #3176]

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Re: [krbdev.mit.edu #3176]

Greg Hudson via RT
On Fri, 16 Sep 2005, Tom Yu via RT wrote:
> Currently, the patch only uses the new shared library build process
> for AIX 5.3.  Is it also applicable to earlier AIX 5.x?  I suspect it
> is, but confirmation would be appreciated.

In part, my proposal is intended to generate the same library combinations as
the 1.4.2 release does.  It merely adds a .so to that set under
--enable-shared (which is the default).  At worst, this'll affect
applications that subsequently get relinked using the non-default -brtl
option of AIX's ld(1) (causing it to prefer a ".so" over a ".a").  Thus I see
little harm in extending this to all AIXen.

However, I'll let you people decide...

On Fri, 16 Sep 2005, Marc Aurele La France wrote:
> --enable-shared builds a dlopen'able lib.so as I have it;  --disable-shared
> doesn't build a lib.so at all.  --enable-static builds a lib.a as an archive
> of static objects;  --disable-static builds a lib.a as a wrapped shared
> object as you have it.  This for all AIXen.

> One issue I already have with this is that more intrusive changes than I
> would like are needed for the --enable-shared --disable-static case.  Also,
> this might limit, or least affect, your options in dealing with the
> --enable-static issue in src/lib/kdb/kdb5.c.

I attach an implementation of this proposal, against both the 1.4.2 release
and the 20050928 snapshot, but only for AIX 5.3.  Changelogs included.

To handle the (default) --disable-static and --enable-shared case, where both
a shared archive (.a) and a shared object (.so) are to be generated, I
generalised the building of static archives to optionally handle versioning
and introduced a MAKE_STLIB_COMMAND variable.  Thus, under --disable-static,
I re-use the static library build scheme to instead generate the ".so".

Also, with these changes, krb5_force_static now needs to be set, if at all,
before src/config/shlib.conf is sourced by configure scripts.

On Fri, 9 Sep 2005, Ken Raeburn wrote:
> On Sep 2, 2005, at 16:25, Marc Aurele La France wrote:
>> It should be noted that, independently of these changes, the current
>> snapshot does not build with --enable-static (primarily due to
>> src/lib/kdb/kdb5.c's compilation with _KDB5_STATIC_LINK #define'd).  I
>> realise that this is a consequence of your on-going integration of Novell's
>> changes and have elected not to interfere with that process, i.e. my "fix"
>> is too specific to the way I've built krb5-current (and is not needed for
>> an official release anyway).

> Yep, static builds are a problem right now.  I'm leaning towards having the
> kdb library do the dlopen bit even for static builds; that keeps some other
> things much more consistent.  Making our testing scripts work again for
> shared-library builds is higher priority, though.

I have again elected to not touch this one.

Marc.

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