On Fri, Sep 16, 2016 at 11:56 AM, Niko Tyni <nt...@debian.org> wrote: > On Tue, Sep 13, 2016 at 10:48:42PM -0500, Bob Friesenhahn wrote: >> It may be necessary to prove where the problem is occuring by manually >> overwriting updated files in the magick directory with those from the >> previous working version until the problem goes away (assuming that it >> does). > > I've bisected it to > > > https://sourceforge.net/p/graphicsmagick/code/ci/4ee2a87a67e064f3a094ee30b40a7a9bba1eb727/ > > Use clock_gettime() to obtain elapsed time. Indeed, confirmed that reverting this commit fixed the compilation on ppc64el. Thanks for your work, I was too slow doing it. :(
> - it also goes away if LockSemaphoreInfo() in magick/semaphore.c is > optimized with -O0, which seems weird Do you mean that this alone is enough to fix this issue? > I haven't found the exact optimization that's triggering it yet, > and I haven't looked at the code GCC generates. It seems to be a GCC code defect, as you noted that even GCC 5 fails to generate a working code. I think I'll use the -O0 compilation workaround, don't want to further delay the Perl transition. Thanks again, Laszlo/GCS
