That's exactly what I did--in fact clone a fresh GHC and try again, but no luck. I attached the full logs in my second message, which have the details--let me know if the attachment is not readable. Thanks very much for your help. John On Sat, Nov 12, 2016 at 3:16 PM, Simon Peyton Jones wrote:

I’ve seen a very recent commit that mentioned bumping a TH bound. Maybe pull, make clean and try again?

Simon

*From:* ghc-devs [mailto:ghc-devs-bounces@haskell.org] *On Behalf Of *John Leo *Sent:* 12 November 2016 22:48 *To:* ghc-devs *Subject:* build fail with latest 8.1 sources

Hi everyone,

I'm trying to build the latest 8.1 sources on a Mac running El Capitan. I'm getting an error I'd never seen before and wonder if anyone has any pointers of how I might fix things. I blew away my GHC, re-cloned from github, reconfigured and I still get the same error.

The following are the relevant output lines; the problem is that the template-haskell version doesn't seem to match. I'm not sure whether this is coming from the template-haskell in 8.1 or in 8.0.1 (which I'm using to build 8.1), but checking the latter I have version 2.11.0.0 which I assume should be sufficient.

John

--------------------

Configuring ghc-pkg-6.9...

Configuring ghc-8.1...

ghc-cabal: Encountered missing dependencies:

template-haskell ==2.11.* && ==2.12.0.0

make[1]: *** [compiler/stage1/package-data.mk https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fpackage-data.mk&data=02%7C01%7Csimonpj%40microsoft.com%7C7b7ee9373fa64fc1ac2808d40b4dfac0%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636145876931712578&sdata=5iOJpziGOFYjoBCfwjB7UQ%2BmxFV5DRsiYmjYEANVXrM%3D&reserved=0] Error 1

make[1]: *** Waiting for unfinished jobs....

make: *** [all] Error 2

----------------

internal-229:~/haskell/ghc> cabal update

(git)-[master]

Downloading the latest package list from hackage.haskell.org https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fhackage.haskell.org&data=02%7C01%7Csimonpj%40microsoft.com%7C7b7ee9373fa64fc1ac2808d40b4dfac0%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636145876931722586&sdata=aCtA6QCLlh%2BE1mus%2B1xJobpNi7K4DLZ8wYckmfEryLU%3D&reserved=0

Skipping download: local and remote files match.

internal-229:~/haskell/ghc> cabal install template-haskell

(git)-[master]

Resolving dependencies...

All the requested packages are already installed:

template-haskell-2.11.0.0

Use --reinstall if you want to reinstall anyway.

John Leo writes:

I just pulled again and picked up a more recent patch by Ben Gamari: https://github.com/ghc/ghc/commit/ca1b986074757efff755c33c7f9a62c7eae43c7f

This seems to have fixed the problem. The commit says 8 hours ago but for some reason I didn't pick it up 2 or 3 hours ago when I last pulled.

Right, sorry John, that was my fault. I bumped the template-haskell version without bumping the bounds of the pacakges that depend upon it. Yet another reason why no change is too small for CI :) Cheers, - Ben

John

On Sat, Nov 12, 2016 at 3:19 PM, John Leo wrote:

...

That's exactly what I did--in fact clone a fresh GHC and try again, but no luck. I attached the full logs in my second message, which have the details--let me know if the attachment is not readable. Thanks very much for your help.

John

On Sat, Nov 12, 2016 at 3:16 PM, Simon Peyton Jones

...

wrote:

...

I’ve seen a very recent commit that mentioned bumping a TH bound. Maybe pull, make clean and try again?

Simon

*From:* ghc-devs [mailto:ghc-devs-bounces@haskell.org] *On Behalf Of *John Leo *Sent:* 12 November 2016 22:48 *To:* ghc-devs *Subject:* build fail with latest 8.1 sources

Hi everyone,

I'm trying to build the latest 8.1 sources on a Mac running El Capitan. I'm getting an error I'd never seen before and wonder if anyone has any pointers of how I might fix things. I blew away my GHC, re-cloned from github, reconfigured and I still get the same error.

The following are the relevant output lines; the problem is that the template-haskell version doesn't seem to match. I'm not sure whether this is coming from the template-haskell in 8.1 or in 8.0.1 (which I'm using to build 8.1), but checking the latter I have version 2.11.0.0 which I assume should be sufficient.

John

--------------------

Configuring ghc-pkg-6.9...

Configuring ghc-8.1...

ghc-cabal: Encountered missing dependencies:

template-haskell ==2.11.* && ==2.12.0.0

make[1]: *** [compiler/stage1/package-data.mk https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fpackage-data.mk&data=02%7C01%7Csimonpj%40microsoft.com%7C7b7ee9373fa64fc1ac2808d40b4dfac0%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636145876931712578&sdata=5iOJpziGOFYjoBCfwjB7UQ%2BmxFV5DRsiYmjYEANVXrM%3D&reserved=0] Error 1

make[1]: *** Waiting for unfinished jobs....

make: *** [all] Error 2

----------------

internal-229:~/haskell/ghc> cabal update

(git)-[master]

Downloading the latest package list from hackage.haskell.org https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fhackage.haskell.org&data=02%7C01%7Csimonpj%40microsoft.com%7C7b7ee9373fa64fc1ac2808d40b4dfac0%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636145876931722586&sdata=aCtA6QCLlh%2BE1mus%2B1xJobpNi7K4DLZ8wYckmfEryLU%3D&reserved=0

Skipping download: local and remote files match.

internal-229:~/haskell/ghc> cabal install template-haskell

(git)-[master]

Resolving dependencies...

All the requested packages are already installed:

template-haskell-2.11.0.0

Use --reinstall if you want to reinstall anyway.

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