Hi, While debugging some remaining issues with the sagemath package I am working, it had a bug where it would link both, statically and dynamically with libpolybori and its associated libraries. Interestingly, when LD_PRELOAD'ing libpolybori.so it would not cause some crashes[1], but when preloading it I found out that it has an interesting problem, where, if the preprocessor UNIX is not defined at compile time, it uses stubs for things like popen and pclose, or "non optimal" code for other things.
I am reporting the problem mostly because the precompiled sagemath binaries also have the problem: % pwd /home/pcpa/sage-4.1 % objdump -t -T local/lib/libpolybori-0.5.0.so | egrep '\<popen\>' 0003de40 g F .text 00000044 popen 0003de40 g DF .text 00000044 Base popen [I renamed to sage-4.1 the directory where I untarred the Mandriva 2009.0 binaries] Another problem is the fact that sage uses the spkg boost-cropped-1.34.1.spkg, while I am building packages with: % rpm -q libboost-devel libboost-devel-1.39.0-2mdv2010.0 I have attempted some time ago to compile only polybori with boost-cropped-1.34.1.spkg, but the results were not very good... [1] The crashes are interesting, because they are generated usually when running something like "sage -t some/dir", but if running "sage -t some/dir/only/the/file/that/causes/the/crash" it doesn't crash; the crash is libc aborting due to memory errors, either something overrun the free'ed memory, or just a double free. Thanks, Paulo --~--~---------~--~----~------------~-------~--~----~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
