There's some work to do on 6.8 to ensure that we can still bootstrap from HC files. This will be slightly harder due to the new Cabal-based build system for libraries, and the solution will probably involve 'setup makefile' somewhere. Also we'll need to update the building guide to include the new instructions, whatever they may be. <details><summary>Trac metadata</summary> | Trac field | Value | | ---------------------- | ------------ | | Version | 6.6.1 | | Type | Bug | | TypeOfFailure | OtherFailure | | Priority | high | | Resolution | Unresolved | | Component | Build System | | Test case | | | Differential revisions | | | BlockedBy | | | Related | | | Blocking | | | CC | | | Operating system | Unknown | | Architecture | Unknown | </details> <!-- {"blocked_by":[],"summary":"bootstrap from HC files","status":"New","operating_system":"Unknown","component":"Build System","related":[],"milestone":"6.8 branch","resolution":"Unresolved","owner":{"tag":"Unowned"},"version":"6.6.1","keywords":[],"differentials":[],"test_case":"","architecture":"Unknown","cc":[""],"type":"Bug","description":"There's some work to do on 6.8 to ensure that we can still bootstrap from HC files. This will be slightly harder due to the new Cabal-based build system for libraries, and the solution will probably involve 'setup makefile' somewhere. Also we'll need to update the building guide to include the new instructions, whatever they may be.","type_of_failure":"OtherFailure","blocking":[]} -->