Dear GHC team,
The archive
http://botik.ru/pub/local/Mechveliani/ghcBugs/ghc741candQuest.zip
contains the source of the docon-2.12 application.
ghc-7.0.1 compiles it and runs the test successfully.
ghc-7.4.0.20111219 cannot compile it.
1. It requires to add Show a to Integral a in a certain place.
It occurs that this requirement breaks the standard (?).
But all right, so far, add Show a there and see what happens further.
2. It reports that certain two packages overlap at some module.
This is a matter of the `build-depends' field in docon.cabal
and of the import declarations.
I tried to correct the build-depends list.
But each time the compiler reports that
a) some packages overlap or
b) build-depends has a wrong line or
c) it cannot find some module (for example, Random).
Can you please, look into ghc741candQuest.zip and set there an appropriate
build-depends ?
(so that make configure
make build
make install
finish correctly).
How does the user guess of this list, what is the method?
This also touches the question of the
module Random
-------------
Thorkil Naur
System.Random can be found in http://hackage.haskell.org/package/random.
I do not find the Random class in Haskell-2010. Probably, DoCon imports Random from the GHC (non-standard) library. When installing ghc-7.01, I just download the source distribution, `make' it, and it installs automatically together with the module Random. Has the status of the module Random changed in ghc-7.4.1 ? What is a regular way to install ghc-7.4.1 together with the module Random ? 3. After the point (2) is fixed, there may appear some more of them ... Thank you in advance for your explanation, ------ Sergei mechvel@botik.ru
Hello Serge, On Fri, Dec 30, 2011 at 07:55:05PM +0400, Serge D. Mechveliani wrote:
... Has the status of the module Random changed in ghc-7.4.1 ?
Between ghc-7.0.4 and ghc-7.4.1, we find http://www.haskell.org/ghc/docs/7.2.1/html/users_guide/release-7-2-1.html that says: 1.5.12.22. random * GHC no longer includes the random library
...
This seems to answer at least one of your questions. Best regards Thorkil
On Fri, Dec 30, 2011 at 07:55:05PM +0400, Serge D. Mechveliani wrote:
Dear GHC team,
The archive http://botik.ru/pub/local/Mechveliani/ghcBugs/ghc741candQuest.zip
contains the source of the docon-2.12 application. ghc-7.0.1 compiles it and runs the test successfully. ghc-7.4.0.20111219 cannot compile it.
1. It requires to add Show a to Integral a in a certain place. It occurs that this requirement breaks the standard (?). But all right, so far, add Show a there and see what happens further.
2. It reports that certain two packages overlap at some module. This is a matter of the `build-depends' field in docon.cabal and of the import declarations.
I tried to correct the build-depends list. But each time the compiler reports that a) some packages overlap or b) build-depends has a wrong line or c) it cannot find some module (for example, Random).
Can you please, look into ghc741candQuest.zip and set there an appropriate build-depends ? (so that make configure make build make install finish correctly). How does the user guess of this list, what is the method?
The attached patch fixes docon so that it compiles under ghc-7.4.0.20111219. Here is an explanation of the necessary changes: * The haskell98 and base packages are no longer compatible, you must choose one or the other. Choose 'haskell98' if you are coding to the Haskell 98 standard, and base if you are coding to Haskell 2010. I deleted the haskell98 package from the build-depends. * Module names like 'List', 'Maybe', 'Random' do not conform to the Haskell 2010 standard; they must be replaced with Data.List, Data.Maybe, and System.Random respectively. * Also, base no longer includes System.Random, so the 'random' package must be added to the build-depends field. -Brent
participants (3)
-
Brent Yorgey -
Serge D. Mechveliani -
Thorkil Naur