Is the HEAD dead?

[Simon Marlow]

Manuel M T Chakravarty wrote:
> In the meantime, I followed SimonPJ's suggestion on the ghc list to
> 
>> If you do a 'darcs pull' then 'make distclean' then 'make' you may 
>> (just now) get errors of various kinds when 'make' reaches utils/ghc-pkg.
>>
>> Solution: cd compat; rm **/*.{hi,o}

That only works with zsh, if using bash you should probably instead

   find compat | grep '\.(o|hi)$' | xargs rm -f

or pick your favourite recursive directory shell idiom.

Cheers,
	Simon

>> Reason: after you pull, make distclean doesn't clean droppings from 
>> previous incarnations of the build system.
> 
> That alters the error message to,
> 
> /opt/local/bin/ghc -package-conf 
> /Users/chak/Code/ghc-test/libraries/bootstrapping.conf -Werror -H64m -O0 
> -fasm -cpp -Wall -fno-warn-name-shadowing -fno-warn-unused-matches 
> -DUSING_COMPAT -i../../compat -package directory -package pretty 
> -package containers  -Rghc-timing -O -fasm -package unix -package 
> containers -package Cabal    -c Main.hs -o Main.o  -ohi Main.hi
> 
> Main.hs:325:2:
>     Couldn't match expected type `ReadP r PackageIdentifier'
>            against inferred type 
> `Cabal-1.5.2:Distribution.Compat.ReadP.ReadP
>                                     r1 a'
>     In the first argument of `(+++)', namely `parse'
>     In the expression:
>           parse
>         +++
>           (do n <- parse
>               string "-*"
>               return (PackageIdentifier {pkgName = n, pkgVersion = 
> globVersion}))
>     In the definition of `parseGlobPackageId':
>         parseGlobPackageId = parse
>                            +++
>                              (do n <- parse
>                                  string "-*"
>                                  return (PackageIdentifier {pkgName = n, 
> pkgVersion = globVersion}))
> 
> Main.hs:829:55:
>     Couldn't match expected type `ReadP a a'
>            against inferred type 
> `Cabal-1.5.2:Distribution.Compat.ReadP.ReadP
>                                     r a1'
>     In the first argument of `readP_to_S', namely `parse'
>     In a stmt of a list comprehension: (x, ys) <- readP_to_S parse str
>     In the scrutinee of a case expression:
>         [x :: PackageIdentifier |
>            (x, ys) <- readP_to_S parse str, all isSpace ys]
> 
> Manuel
> 
> Manuel M T Chakravarty:
>> Trying to validate the HEAD I get:
>>
>> /opt/local/bin/ghc -package-conf 
>> /Users/chak/Code/ghc-test/libraries/bootstrapping.conf -Werror -H64m 
>> -O0 -fasm -cpp -Wall -fno-warn-name-shadowing -fno-warn-unused-matches 
>> -DUSING_COMPAT -i../../compat -package directory -package pretty 
>> -package containers  -Rghc-timing -O -fasm -package unix -package 
>> containers -package Cabal    -c Main.hs -o Main.o  -ohi Main.hi
>>
>> Main.hs:327:11:
>>    No instance for (Text String)
>>      arising from a use of `parse' at Main.hs:327:11-15
>>    Possible fix: add an instance declaration for (Text String)
>>    In a stmt of a 'do' expression: n <- parse
>>    In the second argument of `(+++)', namely
>>        `(do n <- parse
>>             string "-*"
>>             return
>>               (PackageIdentifier {pkgName = n, pkgVersion = 
>> globVersion}))'
>>    In the expression:
>>          parse
>>        +++
>>          (do n <- parse
>>              string "-*"
>>              return (PackageIdentifier {pkgName = n, pkgVersion = 
>> globVersion}))
>>
>> This is using 6.8.3 as the bootstrap compiler on MacOS 10.5.4 (Intel).
>>
>> Manuel
> 
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