Checking PR #29928: gcc: synchronize with toolchain (Formalities Audit)

✅ Pull request originates from a dedicated feature branch (gcc-build-fix)

Commit bdbe1d7 - gcc: synchronize with toolchain:

✅ Author and committer identities are valid
✅ Commit is not a merge commit
✅ Commit subject layout and length are valid: "gcc: synchronize with toolchain"
✅ Commit description lines adhere to width formatting rules
✅ Commit contains a consistent and valid 'Signed-off-by:' line
⚠️ Warning: Commit is unsigned or cryptographic signature verification failed (Reason: unsigned). Signing commits is a recommended best practice for verifying identity, but is not mandatory.