)]}'
{
  "commit": "cd5ed7ca87fbf287c4453c728cb92f77a4ecf78c",
  "tree": "dac6240b78b71bcf6b341f9cc9bdb1d5cf3b0f36",
  "parents": [
    "63f48fd829ff8e1d400d9896ba6ab9730fd2773b"
  ],
  "author": {
    "name": "Louis Dionne",
    "email": "ldionne.2@gmail.com",
    "time": "Tue Dec 02 08:58:00 2025 -0500"
  },
  "committer": {
    "name": "GitHub",
    "email": "noreply@github.com",
    "time": "Tue Dec 02 08:58:00 2025 -0500"
  },
  "message": "[libc++] Make CC and CXX environment variables mandatory in run-buildbot (#166875)\n\nPreviously, the bootstrapping-build job defined in run-buildbot required\nthe CC and CXX environment variables to be defined even though\nrun-buildbot documents these environment variables as being optional. It\nalso relied on ccache being available.\n\nRefactor run-buildbot to make CC and CXX mandatory, and refactor various\nplaces in the CI where we called run-buildbot without setting CC and\nCXX. After this patch, all places that use run-buildbot are setting CC\nand CXX before calling the script, which makes it easier to track what\ncompiler is used where. This also allows simplifying run-buildbot\nitself.\n\nFinally, this patch makes ccache optional for running the bootstrapping\nbuild.",
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