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Ran 27 Aug 2024 04:36PM UTC

Files 934

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Committed 27 Aug 2024 04:34PM UTC coverage: 58.602% (+0.01%) from 58.59%

Job # 10582191714.1

Build Type

push

github

Committed by

web-flow

Commit Message

MSVC: Force different PDB names for different targets (#870)

During compiling using MSVC and Ninja, its not uncommon to see errors
such as:
```
C:\projects\c-ares\test\ares_queryloop.c: fatal error C1041: cannot open program database 'C:\projects\c-ares\build\bin\vc140.pdb'; if multiple CL.EXE write to the same .PDB file, please use /FS
```

We see this as build failures in our AppVeyor runs.

The suggestion of using `/FS` is misleading as it already exists in the
compiler flags (and previous attempts to append them again were wrong).
The real issue I believe is that different output targets are being
compiled in parallel, but trying to use the same pdb file, but clearly
shouldn't be since they're different targets.

This CMake issue may be related:
https://gitlab.kitware.com/cmake/cmake/-/issues/20188

Authored-By: Brad House (@bradh352)

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