[SOLVED] Re: [gentoo-user] Do we have any Blender build experts in the house?
On 05/29/16 01:58, Andrew Lowe wrote: Hi all, I'm attempting to build Blender, 2,7,6 but am running into a problem during linking. I am getting a series of errors referring to an, for example: unresolved reference to 'Imf_2_1::Header::view[abi:cxx11]() const There are a whole series of these errors all referencing undefined things contained within a library called "Imf_2_1". I've done some googling and I think this is something to do with a library from Industrial Light & Magic but other than that, I can't work things out. Has anyone come across this sort of problem before I have to post the whole gory details of this problem. Any thoughts greatly appreciated, Andrew Thanks to all those who provided thoughts. Todd's one: revdep-rebuild --library 'libstdc++.so.6' -- --exclude gcc eventually worked. 280 ebuilds building takes a fair amount of time... Andrew
Re: [gentoo-user] Do we have any Blender build experts in the house?
* Andrew Lowe [160528 13:59]: > Hi all, > I'm attempting to build Blender, 2,7,6 but am running into a problem > during linking. I am getting a series of errors referring to an, for > example: > > unresolved reference to 'Imf_2_1::Header::view[abi:cxx11]() const > > There are a whole series of these errors all referencing undefined > things contained within a library called "Imf_2_1". I've done some > googling and I think this is something to do with a library from > Industrial Light & Magic but other than that, I can't work things out. > Has anyone come across this sort of problem before I have to post the > whole gory details of this problem. > > Any thoughts greatly appreciated, > Andrew When I've seen errors like that in the past my first step has been to make sure all my libraries have been rebuilt with the new GCC. Don't know if this is your issue and could be completely off, but a recent news entry is: 2015-10-22-gcc-5-new-c++11-abi Title GCC 5 Defaults to the New C++11 ABI AuthorMike Frysinger Posted2015-10-22 Revision 2 GCC 5 uses the new C++ ABI by default. When building new code, you might run into link time errors that include lines similar to: ...: undefined reference to '_ZNSt6chrono12steady_clock3nowEv@GLIBCXX_3.4.17' Or you might see linkage failures with "std::__cxx11::string" in the output. These are signs that you need to rebuild packages using the new C++ ABI. You can quickly do so by using revdep-rebuild (from gentoolkit). For gentoolkit-0.3.1 or higher: # revdep-rebuild --library 'libstdc++.so.6' -- --exclude gcc For previous versions of gentoolkit: # revdep-rebuild --library 'libstdc\+\+\.so\.6' -- --exclude gcc For more details, feel free to peruse: https://developerblog.redhat.com/2015/02/05/gcc5-and-the-c11-abi/ https://blogs.gentoo.org/blueness/2015/03/10/the-c11-abi-incompatibility-problem-in-gentoo/
Re: [gentoo-user] Do we have any Blender build experts in the house?
On 05/29/16 10:46, J. García wrote: El sáb, 28-05-2016 a las 17:26 -0600, J. García escribió: BTW, eix won't help you here, I tried it, so the next step is to find what provides the symbol 'Imf_2_1::Header::view', after some searches with find and then google, I arrived at opencv(though not 100% sure), so you might need to rebuild that and make sure(read the log) g++ is being called with std=c++11. tracking this sort of stuff might be tricky. I was left with the doubt if opencv was the package causing trouble, and it is not, so I searched a bit more in depth, and I have found the library you need to rebuild, it is libIlmImf.so, and this time I'm sure. Looking for the package: $ qfile /usr/lib64/libIlmImf.so media-libs/openexr (/usr/lib64/libIlmImf.so) Looking for the symbol: $ readelf -s /usr/lib64/libIlmImf.so | grep '.*Header.*view.*' 1617: 0004a35025 FUNCGLOBAL DEFAULT 10 _ZNK7Imf_2_16Header4viewB 2248: 00049e6025 FUNCGLOBAL DEFAULT 10 _ZN7Imf_2_16Header4viewB5 So you need to: emerge --oneshot media-libs/openexr I kicked off a revdep-rebuild between your previous email and this one. I got 280 packages that needed a rebuild so I've let it go and in turn I'll rerun the Blender install. Fingers crossed, Andrew
Re: [gentoo-user] Do we have any Blender build experts in the house?
El sáb, 28-05-2016 a las 17:26 -0600, J. García escribió: > > BTW, eix won't help you here, I tried it, so the next step is to find > what provides the symbol 'Imf_2_1::Header::view', after some searches > with find and then google, I arrived at opencv(though not 100% sure), > so you might need to rebuild that and make sure(read the log) g++ is > being called with std=c++11. tracking this sort of stuff might be > tricky. I was left with the doubt if opencv was the package causing trouble, and it is not, so I searched a bit more in depth, and I have found the library you need to rebuild, it is libIlmImf.so, and this time I'm sure. Looking for the package: $ qfile /usr/lib64/libIlmImf.so media-libs/openexr (/usr/lib64/libIlmImf.so) Looking for the symbol: $ readelf -s /usr/lib64/libIlmImf.so | grep '.*Header.*view.*' 1617: 0004a35025 FUNCGLOBAL DEFAULT 10 _ZNK7Imf_2_16Header4viewB 2248: 00049e6025 FUNCGLOBAL DEFAULT 10 _ZN7Imf_2_16Header4viewB5 So you need to: emerge --oneshot media-libs/openexr
Re: [gentoo-user] Do we have any Blender build experts in the house?
El dom, 29-05-2016 a las 01:58 +0800, Andrew Lowe escribió: > Hi all, > I'm attempting to build Blender, 2,7,6 but am running into a > problem > during linking. I am getting a series of errors referring to an, for > example: > > unresolved reference to 'Imf_2_1::Header::view[abi:cxx11]() const > I've hit this sort of errors a few times(libreoffice mainly), no need for blender experts. The problem is your when linking the libraries/binaries, it is trying to link code compiled with -std=c++11 and some library compiled with an older standard,and thus it the linker cannot find binary code that maches what your newly compiled programs wants. there was a news item about this, you should read/revisit it, named: Title GCC 5 Defaults to the New C++11 ABI AuthorMike Frysinger Posted2015-10-22 Revision 2 The proposed solution is: (quote from the news item) For gentoolkit-0.3.1 or higher: # revdep-rebuild --library 'libstdc++.so.6' -- --exclude gcc For previous versions of gentoolkit: # revdep-rebuild --library 'libstdc\+\+\.so\.6' -- --exclude gcc But I've encountered some packages that weren't rebuild with that, so what I do is: search for the library that needs rebuild(hint e.g. for your case, eix imf) and then emerge -av1 that library, and try again rebuilding the package I wanted in the first place(blender for you). I say rebuild but I really just manually call ´ebuild $PORDTDIR/cat/pkg- ver' install as the portage user, and then package, and install it as a binary at the end, but how to do this is out of the scope of the interest of this thread. BTW, eix won't help you here, I tried it, so the next step is to find what provides the symbol 'Imf_2_1::Header::view', after some searches with find and then google, I arrived at opencv(though not 100% sure), so you might need to rebuild that and make sure(read the log) g++ is being called with std=c++11. tracking this sort of stuff might be tricky.
[gentoo-user] Do we have any Blender build experts in the house?
Hi all, I'm attempting to build Blender, 2,7,6 but am running into a problem during linking. I am getting a series of errors referring to an, for example: unresolved reference to 'Imf_2_1::Header::view[abi:cxx11]() const There are a whole series of these errors all referencing undefined things contained within a library called "Imf_2_1". I've done some googling and I think this is something to do with a library from Industrial Light & Magic but other than that, I can't work things out. Has anyone come across this sort of problem before I have to post the whole gory details of this problem. Any thoughts greatly appreciated, Andrew
