Looking more closely at the log output it appears there were some errors or
at least warnings earlier in the output, including for template haskell, so
I've attached the full output. I'll continue to investigate on my machine,
but again if anyone has pointers I'd appreciate it. I've build 8.1 many
times and never seen this problem before.
John
On Sat, Nov 12, 2016 at 2:48 PM, John Leo
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] 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 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.