[Slackbuilds-users] several builds crashing looking for old libwebp
dchmelik at gmail.com
Wed Oct 3 07:08:46 UTC 2018
Thanks, B and Matteo for replies. I hadn't seen the duplicate post
until I checked Gmane; I wish listserv didn't accept posts from my other
email address (not a member.) Is it possible yet to post on Gmane?
On Tue, 02 Oct 2018 05:56:30 -0400, B Watson wrote:
> [...] OK, a bit more investigation reveals that notepadqq and kvirc both
> require qt5-webkit. And qt5-webkit lists libwebp as an optional
> dependency, in its README.
> So what happened here is you built some version of libwebp, then built
> qt5-webkit afterwards... and then you (possibly months later) upgraded
> libwebp. But qt5-webkit was still trying to find the old libwebp, which
> is gone...
> Generally you can figure this kind of runtime linking problem out by
> using ldd... or, even better, get lddsafe from here:
Thanks; looking that up now.
> It's not "poor source code" and it's not "SlackBuilds done wrong",
> and it's kinda rude of you to say that, considering you're lacking some
> fundamental knowledge that would qualify you to actually make that
> Your original post should probably have been a request for help, without
> trying to place the blame on anyone. In fact, the blame is on you,
> *your* system was in an inconsistent state. Hopefully I've helped you to
> fix it and learn how to diagnose and fix it on your own next time.
> Please try to take this as constructive criticism, not flaming.
I'm not flaming, just paraphrasing 'If NotepadQQ looks for libwebp at
runtime that is a "runtime dependency" and the idiots upstream (either
NotepadQQ or qt5-webkit) should be looking for libwebp.so not
libwebp.so.x. Install everything for BOINC, including libwebp-1.0.0.
Then just create a libwebp.so.6 symlink to libwebp.so'--King Beowulf (on
his LQ BOINC thread.)
On Tue, 02 Oct 2018 12:50:56 +0200, Matteo Bernardini wrote:
> if qt5 and qt5-webkit depends on libwebp you should build first libwebp
> and then qt5 and then qt5-webkit (that depends on qt5), this is
> necessary for a program/library using a dependency to link to it at
> I wrote "built against it" meaning "built linking to it", both forms are
> often used on this mailing list, irc or the LQ forum.
Ok, thanks; doing that now.
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