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Under Consideration for 2021.3.X, 2022.3.X, 6000.0.X
Votes
2
Found in
2021.3.43f1
2022.3.44f1
6000.0.16f1
Issue ID
UUM-78669
Regression
No
fatal error: 'wasm_simd128.h' file not found when building Web Player with xmmintrin.h included
How to reproduce:
1. Open the attached “IN-82901” project
2. Select File → Build Profiles → Build
3. Observe the result
Expected result: The build succeeds
Actual result: The build fails with a ‘wasm_simd128.h file not found’ error
Reproducible in: 2021.3.43f1, 2022.3.44f1, 6000.0.16f1
Reproducible on: Windows 11
Not reproducible on: No other environments tested
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wechat_os_Qy07fPDlbfoO3wR2Yt04i04WI
Sep 06, 2024 08:57
this problem is not obvious before Unity 6 since the older versions does not support wasm simd anyway, most of libraries does not really include this header file if SSE/SIMD macros are not defined.
but Unity 6 supports wasm simd and enabled those macros when compiling C++ Source native plugins by default, so those working plugins in older versions would start to failing to compile in Unity 6.
hopefully this can be resolved before Unity 6 officially released.