Am 14.02.2011 18:58, schrieb Khem Raj: > On Mon, Feb 14, 2011 at 12:32 AM, Steffen Sledz <[email protected]> wrote: >> Am 04.10.2010 18:00, schrieb Khem Raj: >>> On Mon, Oct 4, 2010 at 1:08 AM, Thilo Fromm <[email protected]> wrote: >>>> Hello Frans, >>>> >>>>>>> I tracked it down - libunwind publishes unwind.h, and gcc uses an >>>>>>> internal >>>>>>> file of the same name while being built. >>>>>> >>>>>> Yes gcc has its own version of libunwind which it used unless >>>>>> configured with --with-system-libunwind >>>>>> IIUC the problem happens with target gcc not with cross-gcc. target >>>>>> gcc is built using cross-gcc and >>>>>> <sysroot>/use/include could be preferred over the location of >>>>>> libunwind.h which is in gcc sources >>>>>> If thats the case then we need to fix gcc build to not look into >>>>>> standard sysroot/usr/include but prefer >>>>>> the local unwind.h when its using internal libunwind. The problem >>>>>> would not show up if the libunwind versions >>>>>> were matching but that may not be the case always and I dont know of >>>>>> hand how we can fix the gcc configury/build >>>>>> to ignore installed unwind.h >>>>>> >>>>>> You workaround would only work if build sequence was followed if some >>>>>> one just cleaned gcc and rebuild it >>>>>> the problem will resurface. >>>>>> >>>>> Thanks for the analysis Khem. >>>>> This is indeed more or less what I had expected. >>>>> >>>>> For me this patch gets a NAK as it does only masks the problvem in >>>>> some cases but not really solves it. >>>> >>>> You're right with this analysis; however, the patch enables Openembedded to >>>> be built *at all*. If you care less about whether you're able to actually >>>> build and if you have the time to wait until someone ventures deep into the >>>> gcc build and fixes the cause, then this is the way to go. >>>> >>>> For us, however, this patch is a valid workaround. It will make >>>> Openembedded >>>> work for us until the original issue is fixed. >>> >>> I think we should try to fix it in right way. >> >> Ping! > > I think this patch does not fix the problem but hides it. It will not > be worth to get it upstream
That's right. I read your comment from october 1st that you try to fix this "in the right way" by fixing "the gcc build to not look into standard sysroot/usr/include but prefer the local unwind.h when its using internal libunwind". Steffen -- DResearch Fahrzeugelektronik GmbH Otto-Schmirgal-Str. 3, 10319 Berlin, Germany Tel: +49 30 515932-237 mailto:[email protected] Fax: +49 30 515932-299 Geschäftsführer: Dr. Michael Weber, Werner Mögle; Amtsgericht Berlin Charlottenburg; HRB 130120 B; Ust.-IDNr. DE273952058 _______________________________________________ Openembedded-devel mailing list [email protected] http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-devel
