| Issue |
134855
|
| Summary |
[Modules][libc++] Can't use modules with precompiled headers and libc++
|
| Labels |
libc++
|
| Assignees |
|
| Reporter |
Algorithm0
|
I'm trying to build a project that uses C++20 modules and precompiled headers at the same time. When I use the LLVM libc++ library in such a scenario, I get a build error.
If I use GCC libstdc++ instead of LLVM libc++, the build goes correctly.
The build also passes correctly if I don't use precompiled headers (write `#include` inside source files).\
Build log is attached as an attachment.\
Also, [here's](https://github.com/Algorithm0/modules-and-pch-libcxx-bug) a repo that cannot build with libc++.
[build_log.txt](https://github.com/user-attachments/files/19650286/log.txt)
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