cppgoogle/snappy #206Not a task: not reproduced

support for headers in a split prefix broken between 1.2.1 and 1.2.2

envgap__google__snappy-206

Original GitHub issue ↗Dated source checkout ↗Opened 2025-05-11

01 / FAILURE SIGNATURE

As reported upstream

No identifying execution failure has been captured.

Not a benchmark task.

In a clean container the reported failure did not reproduce, or the known fix did not make the project run.

02 / ENVIRONMENT RECIPE

Base commit: dadc02f0cd8122701c92ee4f06d2c826f3a10ea8
Manifest: CMakeLists.txt
Reproduce: Awaiting issue-specific recipe
Run under trace: Awaiting a meaningful runtime command

03 / ORIGINAL ISSUE TEXT

google/snappy #206 · read the original issue

In NixPkgs/NixOS we often put headers into a different prefix than libraries. But that broke for snappy when we [attempted upgrade](https://github.com/NixOS/nixpkgs/pull/405879) from 1.2.1 to 1.2.2.

In `lib/cmake/Snappy/SnappyTargets.cmake` this update added an INTERFACE_SOURCES line that assumes everything is in a single prefix.  That's incorrect in our case and then (some) dependents would fail to find (some of) the headers.

I looked briefly into your sources and diff between the releases, but I have no idea how this difference originated.  I can (try to) provide more info in you tell me what.

Continue on GitHub ↗

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