# Building on M1 mac
**URL:** https://forum.aousd.org/t/building-on-m1-mac/2395
**Category:** Build and Deployment
**Created:** [April 24, 2025, 4:51pm UTC](https://forum.aousd.org/t/building-on-m1-mac/2395 "2025-04-24T16:51:50Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@ashum](https://forum.aousd.org/u/ashum)
#### Post date: [April 24, 2025, 4:51pm UTC](https://forum.aousd.org/t/building-on-m1-mac/2395/1 "2025-04-24T16:51:50Z")
When building Mac m1 I get the following issue for incorrect architecture:
[81%] Linking CXX shared library libusd\_ms.dylib
ld: warning: ignoring file ‘/opt/homebrew/Cellar/tbb/2022.1.0/lib/libtbb.12.15.dylib’: found architecture ‘arm64’, required architecture ‘x86\_64’
Undefined symbols for architecture x86\_64:
"_PyArg\_ParseTupleAndKeywords", referenced from:
pxrInternal\_v0\_25\_5\_\_pxrReserved_\_::pxr\_boost::python::property\_init(\_object\*, \_object\*, \_object\*) in libusd\_m.a16
The command I use is:
python ./build\_scripts/build\_usd.py --build-args TBB,arch=arm64 --python --no-imaging --no-usdview --prefer-safety-over-speed --build-monolithic ./build
Does anyone know how to fix this?
[log.txt](https://forum.aousd.org/uploads/short-url/ogm5EG11D0DcGi614MAbBXh7BOP.txt) (276.2 KB)
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### Author:  [@varun](https://forum.aousd.org/u/varun)
#### Post date: [April 24, 2025, 5:05pm UTC](https://forum.aousd.org/t/building-on-m1-mac/2395/2 "2025-04-24T17:05:32Z")
Hi Aleksandr
It seems like you are specifying arch=arm64 for TBB but USD build will be picking up the native architecture, which in your case is x86\_64. Could you please try the following instead:
> python ./build\_scripts/build\_usd.py --build-target arm64 --python --no-imaging --no-usdview --prefer-safety-over-speed --build-monolithic ./build
Refer the following:
- [OpenUSD/build\_scripts/build\_usd.py at dev · PixarAnimationStudios/OpenUSD · GitHub](https://github.com/PixarAnimationStudios/OpenUSD/blob/dev/build_scripts/build_usd.py#L1965-L1970)
- [OpenUSD/build\_scripts/apple\_utils.py at dev · PixarAnimationStudios/OpenUSD · GitHub](https://github.com/PixarAnimationStudios/OpenUSD/blob/dev/build_scripts/apple_utils.py#L25)
Hope this helps.
Thanks
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### Author:  [@ashum](https://forum.aousd.org/u/ashum)
#### Post date: [April 24, 2025, 9:07pm UTC](https://forum.aousd.org/t/building-on-m1-mac/2395/3 "2025-04-24T21:07:16Z")
> [@varun](#):
>
> OpenUSD/build\_scripts/build\_usd.py at dev · PixarAnimationStudios/OpenUSD · GitHub
Hey, thx for the help. It got me forward a little bit in the building process. Unfortunately running
python ./build\_scripts/build\_usd.py --build-target arm64 --build-args TBB,arm64 --python --no-imaging --no-usdview --prefer-safety-over-speed --no-materialx --build-monolithic ./build
leads to the following error in the log:
[log.txt](https://forum.aousd.org/uploads/short-url/ogm5EG11D0DcGi614MAbBXh7BOP.txt) (276.2 KB)
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### Author:  [@ashum](https://forum.aousd.org/u/ashum)
#### Post date: [April 25, 2025, 1:49pm UTC](https://forum.aousd.org/t/building-on-m1-mac/2395/4 "2025-04-25T13:49:01Z")
I’ve narrowed it down to python support, but still not sure what is causing the incorrect architecture issue.
python version Python 3.9.0
seems like libusd\_ms.dylib is complaining.
[87%] Linking CXX shared library libusd\_ms.dylib
Undefined symbols for architecture arm64:
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### Author:  [@benmalartre](https://forum.aousd.org/u/benmalartre)
#### Post date: [April 28, 2025, 9:42am UTC](https://forum.aousd.org/t/building-on-m1-mac/2395/5 "2025-04-28T09:42:36Z")
On my side i had to install python 3.10.11 to successfully build OpenUSD with python support
as seen in this post:
>