On Tue, Jul 03, 2018 at 10:21:42AM +0200, Jan Kurik wrote:
> Note from Change Wrangler: This Change Proposal requires mass rebuild.
> However, two weeks ago (June 19th), we have already passed the
> deadline for Change proposals requiring mass rebuild. I will leave the
> decision whether this Change proposal is accepted or not to RelEng and
> FESCo teams.
>
> = Proposed System Wide Change: Remove Excessive Linking =
> https://fedoraproject.org/wiki/Changes/RemoveExcessiveLinking
>
>
> Owner(s):
> * Igor Gnatenko <ignatenkobrain at fedoraproject dot org>
> * Neal Gompa <ngompa13 at gmail dot com>
>
>
> Pass "--as-needed" flag the linker through default system-wide LDFLAGS.
>
>
> == Detailed description ==
> The flag ("--as-needed") tells the linker to link in the produced
> binary only the libraries containing symbols actually used by the
> binary itself. This binary can be either a final executale or another
> library.
> The use of the "--as-needed" flag allows the linker to avoid linking
> extra libraries in a binary. This not only improves startup times (as
> the loader does not have to load all the libraries for every step) but
> might avoid the full initialization of big frameworks.
Well, --as-needed is workaround and nothing else. The real problem is
mess in makefiles and .pc (pkg-config) files.
It would be better to use --as-needed for testing purpose only, and
ask maintainers why the result with --as-needed is different.
Karel
--
Karel Zak <k...@redhat.com>
http://karelzak.blogspot.com
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