Dear pjsip developers, I have experienced some failures building pjsip, possibly related tp parallel builds. The Buildroot embedded Linux build system [0] includes a recipe for PJ project [1], currently at version 2.4.5. The build failures I experienced happened on the Buildroot autobuilder machines [2] [3], that continuously run Buildroot builds based on random configurations. Between March 17 and May 12 there have been 13 build failures, most ending with the error message: <...>ld: cannot find -lpjsua Here are the logs for some of such failures: [4] [5] [6] [7]. Click on the build-end.log link to view the build log. This error is happening irregularly. I tried to reproduce several of the mentioned configurations on my machine but I was never able to experience the failure. The error message suspiciously looks like a parallel build issue, i.e. happening when calling 'make -j<N>' to speed up the build on multicore machines. So on May 12 I submitted a patch to disable parallel build [8]. It's about 1 month since the patch was applied and there have been no more pjsip build failures. That said, I strongly suspect the pjsip makefiles have some bug that prevents parallel build from working. Is it possible? I compared the code of pjsip 2.4.5 with the latest release, 2.5.1, and it doesn't seem like there is a fix for this issue. Can this problem be fixed somehow, or can you suggest another solution? BTW, do you ever use parallel build during development, continuous integration or anything else? [0] https://buildroot.org/ [1] https://git.buildroot.net/buildroot/tree/package/libpjsip [2] http://nightly.buildroot.org/manual.html#_analyzing_and_fixing_autobuild_failures [3] http://autobuild.buildroot.org/ [4] http://autobuild.buildroot.org/results/d6b/d6bff569bc9238cdf07970e11b5535d570be59bf [5] http://autobuild.buildroot.org/results/f72/f721d5390bc61274c224bfe3a675ee194172ac91 [6] http://autobuild.buildroot.org/results/b45/b45262971a7d7ce0604d124734223abca190c11e [7] http://autobuild.buildroot.org/results/75e/75ee45b746ab8b80eb84297e2e4babbace1b5608 [8] http://lists.busybox.net/pipermail/buildroot/2016-May/160995.html Thanks, -- Luca _______________________________________________ Visit our blog: http://blog.pjsip.org pjsip mailing list pjsip@xxxxxxxxxxxxxxx http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org
