Error in Build_usd.py (Windows) - Such as mess...

[OldManMeta]

Steps to Reproduce

1. Read your documentation....
2. Add Build Scripts to C:\USD
3. Create a c:\Program Files\USD directory ( Because the documentation states the install command... Which is nuts, because these are protected folder locations on Windows)
4. Sort out the permissions of that folder, just to run the script....
5. Run command (as specified in your docs) - python USD\build_scripts\build_usd.py "C:\Program Files\USD"

First errors you will come across are because of the white space in the folder name "Program Files"

Ok - so then, head back and create an Install directory in your C:\USD folder

Then run the command: python build_usd.py "C:\USD\Install"

Goes through the dependency installations... but then dies at the boost location.

This is the output of the boost log.txt file

log.txt

Searching for the word Fail, we find:

...failed compile-c-c++ C:\USD\Install\build\boost\bin.v2\libs\python\build\msvc-14.2\release\python-3.10\threading-multi\exec.obj...

Thoughts?
Cheers for your help.

[meshula]

Hi @OldManMeta, there are two issues here. For the first one, can I suggest opening a second issue for "Instructions suggest installing USD into a protected area in Windows", we should address that separately.

The source of the build failure is that you are using Python 3.10. There was a breaking change in python 3.10 that breaks boost python. We can see the problem here in your log:

compile-c-c++ C:\USD\Install\build\boost\bin.v2\libs\program_options\build\msvc-14.2\release\threading-multi\positional_options.obj
positional_options.cpp
common.copy C:\USD\Install\include\boost-1_70\boost\config.hpp
C:\USD\Install\src\boost_1_70_0\boost\config.hpp
        1 file(s) copied.
compile-c-c++ C:\USD\Install\build\boost\bin.v2\libs\python\build\msvc-14.2\release\python-3.10\threading-multi\exec.obj
exec.cpp
libs\python\src\exec.cpp(109): error C3861: '_Py_fopen': identifier not found

The python developers removed _Py_fopen and replaced it with _Py_fwopen.

If it's an option for you, one solution is to install Python 3.9 instead. That may not make sense in your situation, so the other solution is patch build_usd.py to use the same version of boost that is used for macos.

Look for the setting of the BOOST_URL variable for windows in build_usd.py, and change it to:

    BOOST_URL = "https://boostorg.jfrog.io/artifactory/main/release/1.76.0/source/boost_1_76_0.tar.gz"

and that will resolve the problem today. On our end, we will need to bump the boost version for windows.

[OldManMeta]

@meshula - thanks for the response and clarity on the issue. Makes sense for sure - and as noted, python 3.9 is going to hurt me with other dependencies - such is life eh?

Thanks again.