> Hello, > > This email is to tell about a problem in building vlc and how it could > be worked around. > > I was just updating a system here (x86_64 with multilib), running > SlackBuilds manually to rebuild some old packages and experienced a > problem with the binary vlc generated, which gave segfaults > systematically. > > I tried to analyze the problem and found a piece of code inside > pulseaudio which calls shm_open() (which is supplied from librt.so). > Going further, I found that shm_open() tries to call __shm_directory() > and this function - which is inside libpthread.so - is not correct > linked for some reason. When the call is tried, the segfault > happens. > > (yes, to find it I have to google a little; this article showed the > trick: > https://stackoverflow.com/questions/47905554/segmentation-fault-appears-when-i-use-shared-memory-only-from-statically-build-p) > > I could find a way to work around it. The vlc binary, as it was built in > the machine, required libpthread.so but not librt.so (verified by > calling objdump -x vlc). I managed to add librt.so in the final link > (using SLKLDFLAGS="-lrt") and the resulting vlc added librt.so as a > "NEEDED" dependency. Installing the package, the problem was gone. > > Of course this is not happening in the majority of the installations, > but as it happened here, it can happen anywhere. > > As I don't post here frequently, let me thank you contributors for the > time devoted to the project. > > > Many thanks! > > Luiz Carlos Ramos > lramos.p...@yahoo.com.br > São Paulo - Brazil > _______________________________________________ > SlackBuilds-users mailing list > SlackBuilds-users@slackbuilds.org > https://lists.slackbuilds.org/mailman/listinfo/slackbuilds-users > Archives - https://lists.slackbuilds.org/pipermail/slackbuilds-users/ > FAQ - https://slackbuilds.org/faq/ > > Interesting. Ill look into this some more when Im able to.
chris _______________________________________________ SlackBuilds-users mailing list SlackBuilds-users@slackbuilds.org https://lists.slackbuilds.org/mailman/listinfo/slackbuilds-users Archives - https://lists.slackbuilds.org/pipermail/slackbuilds-users/ FAQ - https://slackbuilds.org/faq/