stage2 build fails

[Simon Peyton Jones]

Thanks -- I'll try that.

Simion

|  -----Original Message-----
|  From: Stefan Schulze Frielinghaus <ml at stefansf.de>
|  Sent: 28 January 2020 11:32
|  To: Simon Peyton Jones <simonpj at microsoft.com>
|  Cc: Ben Gamari <ben at smart-cactus.org>; ghc-devs <ghc-devs at haskell.org>
|  Subject: Re: stage2 build fails
|  
|  I ran into a similar(?) problem a while ago. "make maintainer-clean"
|  does not necessarily remove every generated file. See for example
|  
|  
|  https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fmail.has
|  kell.org%2Fpipermail%2Fghc-devs%2F2019-
|  August%2F018049.html&data=02%7C01%7Csimonpj%40microsoft.com%7Cd2614760
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|  p;reserved=0
|  
|  Since then I only use
|  
|    git clean -dfxq && git submodule foreach git clean -dfxq
|  
|  which worked reliably for me (beware that this removes any untracked
|  file). Maybe this helps?
|  
|  Cheers,
|  Stefan
|  
|  On Tue, Jan 28, 2020 at 10:41:33AM +0000, Simon Peyton Jones via ghc-devs
|  wrote:
|  > I did "sh validate --legacy" which uses "make maintainer-clean".
|  >
|  > I'll try again to double check.  Is there any particular file I should
|  remove?
|  >
|  > Simon
|  >
|  > |  -----Original Message-----
|  > |  From: Ben Gamari <ben at smart-cactus.org>
|  > |  Sent: 27 January 2020 18:59
|  > |  To: Simon Peyton Jones <simonpj at microsoft.com>; ghc-devs <ghc-
|  > |  devs at haskell.org>
|  > |  Subject: RE: stage2 build fails
|  > |
|  > |  Simon Peyton Jones <simonpj at microsoft.com> writes:
|  > |
|  > |  > |  Indeed it would be nice to know which compiler you are using to
|  > |  > |  bootstrap. I suspect Sylvain is correct that the alternative can
|  be
|  > |  > |  removed but first I would like to understand why this is arising
|  only
|  > |  > |  now.
|  > |  >
|  > |  > I'm using 8.6.4 as my bootstrap compiler. But this message occurs
|  only
|  > |  when compiling the *stage2* compiler with the *stage1* compiler. At
|  that
|  > |  moment the bootstrap compiler is irrelevant.
|  > |  >
|  > |  > It's as if the build system doesn't know that the stage1 compiler
|  is >=
|  > |  8.10
|  > |  >
|  > |  Hmm, interesting. Has this tree been cleaned in the last month or
|  two?
|  > |  I suspect that this may have something to do with the changes to the
|  > |  GHC_STAGE macro that were merged a while back (perhaps a stale header
|  > |  file?).
|  > |
|  > |  Cheers,
|  > |
|  > |  - Ben
|  >
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