)]}'
{
  "commit": "e1c8dac7ca8dde4d99776685dee43e05cd3ea6d2",
  "tree": "bf01fde3dbae6d30ca0d6eafc3c9a63d1a0ee38c",
  "parents": [
    "7686bcbb2b7b08688008a6a0e29e6561af1a9a98"
  ],
  "author": {
    "name": "Alexey Klimkin",
    "email": "alexey.klimkin@intel.com",
    "time": "Tue Aug 25 20:36:48 2026 -0700"
  },
  "committer": {
    "name": "Jason Merrill",
    "email": "jason@redhat.com",
    "time": "Tue Sep 01 10:52:41 2026 -0400"
  },
  "message": "libcpp: Use -1 for closed header-unit fd [PR c++/127097]\n\n_cpp_find_header_unit closes the source descriptor after resolving a\nheader unit, but records zero instead of the established -1 sentinel.\nA later textual include through an alternate pathname therefore skips\nreopening the source and reads stdin.  Descriptor zero is also a valid\nresult from open when stdin was previously closed.\n\nClose every valid descriptor and restore -1.  Add a module regression\nthat imports a header unit and includes the same file through an\nalternate spelling.\n\nAssisted-by: Claude Opus 5 (Anthropic)\n\nlibcpp/\n\tPR c++/127097\n\t* files.cc (_cpp_find_header_unit): Close descriptor zero and set\n\tthe closed descriptor sentinel to -1.\n\ngcc/testsuite/\n\tPR c++/127097\n\t* g++.dg/modules/pragma-once-hu-1_a.H: New test.\n\t* g++.dg/modules/pragma-once-hu-1_b.C: New test.\n\nSigned-off-by: Alexey Klimkin \u003calexey.klimkin@intel.com\u003e\n",
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