py39-pytorch: Symbol not found

[essandess (Steve Smith)]

python3 -c 'import torch'
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/torch/__init__.py", line 196, in <module>
    from torch._C import *
ImportError: dlopen(/opt/local/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/torch/_C.cpython-39-darwin.so, 2): Symbol not found: __ZN6google21kLogSiteUninitializedE
  Referenced from: /opt/local/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/torch/lib/libc10.dylib
  Expected in: /opt/local/lib/libglog.0.dylib
 in /opt/local/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/torch/lib/libc10.dylib

[essandess (Steve Smith)]

Source builds are also failing. Log attached.

[cjones051073 (Chris Jones)]

Looks like maybe a rev-bump might be needed perhaps...

[cjones051073 (Chris Jones)]

unfortunately not

[ 18%] Linking CXX shared library ../lib/libc10.dylib
Undefined symbols for architecture x86_64:
  "google::glog_internal_namespace_::IsGoogleLoggingInitialized()", referenced from:
      c10::InitCaffeLogging(int*, char**) in Logging.cpp.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
gmake[2]: *** [c10/CMakeFiles/c10.dir/build.make:780: lib/libc10.dylib] Error 1
gmake[1]: *** [CMakeFiles/Makefile2:3722: c10/CMakeFiles/c10.dir/all] Error 2
gmake[1]: *** Waiting for unfinished jobs....

[essandess (Steve Smith)]

See ​https://github.com/google/glog/issues/660

[ryandesign (Ryan Carsten Schmidt)]

8 months later, ​py-pytorch still fails to build due to that error. The Google Glog issue linked to above has been closed and locked due to "pointless arguing".

Steve submitted ​this PR to add a google-glog-0.4.0 subport and have py-pytorch use it for now.

[essandess (Steve Smith)]

Also see ​https://github.com/pytorch/pytorch/issues/58054.

Note that ​google-glog closed this issue because pytorch isn't using their API correctly, so it's a PT issue not a glog issue.

Also note the PR uses the latest version of PT that compiles with glog 0.4, and an update won't be possible until PR fixes this.

Replying to ryandesign:

8 months later, ​py-pytorch still fails to build due to that error. The Google Glog issue linked to above has been closed and locked due to "pointless arguing".

Steve submitted ​this PR to add a google-glog-0.4.0 subport and have py-pytorch use it for now.

[mascguy (Christopher Nielsen)]

I believe this is fixed, and we simply forgot to close this ticket. But in short, py-pytorch was patched, and discussion also occurred with upstream.

The following ticket includes full detail, regarding the various commits/fixes: issue:63544

Steve, would you agree that this is resolved?