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vcpkg Configuration

Files

File Purpose
vcpkg-configuration.json Default registry configuration used by all builds
vcpkg-configuration-rhel8.json RHEL8-specific registry configuration with a separate baseline

Changing the baseline

The baseline field in each configuration file pins the vcpkg registry to a specific commit of microsoft/vcpkg. Packages available at that commit are used for dependency resolution.

  • Update vcpkg-configuration.json for the default (Ubuntu/Windows) builds.
  • Update vcpkg-configuration-rhel8.json independently when a different baseline is needed for RHEL8 (Rocky Linux 8) compatibility — e.g. to match older system libraries (glibc 2.28, OpenSSL 1.1).

RHEL8 CI usage

The workflow .github/workflows/rhel8-unit-tests.yml copies vcpkg-configuration-rhel8.json over vcpkg-configuration.json before invoking cmake:

- name: Use RHEL8 vcpkg configuration
  run: cp vcpkg-configuration-rhel8.json vcpkg-configuration.json

This ensures vcpkg uses the RHEL8 baseline without affecting other CI runs.