February 2009 - cabal-devel

[Hackage] #502: Both enable and disable are default in library-vanilla documentation
by Hackage 19 Feb '09

19 Feb '09

#502: Both enable and disable are default in library-vanilla documentation ----------------------------------+----------------------------------------- Reporter: marcot | Owner: Type: defect | Status: new Priority: normal | Milestone: Component: miscellaneous | Version: HEAD Severity: normal | Keywords: Difficulty: very easy (<1 hour) | Ghcversion: Platform: | ----------------------------------+----------------------------------------- In http://haskell.org/cabal/release/latest/doc/users-guide/builders.html, both --enable-library-vanilla and --disable-library-vanilla ary assigned as default. -- Ticket URL: <http://hackage.haskell.org/trac/hackage/ticket/502> Hackage <http://haskell.org/cabal/> Hackage: Cabal and related projects

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patch applied (cabal): Fix user guide docs about --disable-library-vanilla
by Duncan Coutts 19 Feb '09

19 Feb '09

Thu Feb 19 08:55:39 PST 2009 Duncan Coutts <duncan(a)haskell.org> * Fix user guide docs about --disable-library-vanilla It is not default. Looks like it was a copy and paste error. M ./doc/Cabal.xml -1 +1 View patch online: http://darcs.haskell.org/cabal/_darcs/patches/20090219165539-adfee-3bf0210e…

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halfs-0.2 breakage with Cabal-1.6.0.2
by Duncan Coutts 19 Feb '09

19 Feb '09

Hi Isaac, I'm afraid that the latest release of Cabal breaks halfs-0.2. It's one of a small handful of packages affected by the fact that Cabal now checks that header files and C libs are present at configure time. However halfs-0.2 is the only package I've found where the failure was not strictly the package's fault. What happens with halfs-0.2 is that it declares in the .cabal file that it needs binutils.h which is a local header file. This is used by Binary.hs. However Binary.hs also #includes <strings.h> first. Also, the context in which binutils.h will be used in the intermediate .hc file which will also #include "HsFFI.h". Now it turns out that binutils.h requires both headers to be included first otherwise types that it uses are not defined. So what goes wrong is that Cabal checks if it can compile a test.c file that #includes all the header files that halfs.cabal says it needs. Of course this fails because binutils.h cannot be included on its own, it needs strings.h and HsFFI.h to be included first. The solution I would suggest is to modify binutils.h to #include both <strings.h> and "HsFFI.h" first. I think we can rely on #ifdef guards to prevent double-inclusion. Then it will be usable from each context, the .hc file and the Cabal configure test. The alternative would be to list strings, HsFFI.h and binutils in the .cabal file (in which case it would not need to be listed in Binary.hs). Another alternative is to not list it at all in the .cabal file. Arguably it's already wrong because the header file does not get installed yet technically it may be required if ghc decides to inline C calls across package boundaries (though this latter problem does not apply from ghc-6.10 onwards). Duncan

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ANNOUNCE: Cabal-1.6.0.2 and cabal-install-0.6.2
by Duncan Coutts 19 Feb '09

19 Feb '09

I'm pleased to announce point-releases of the Cabal library and the cabal-install command line tool. If you are already using cabal-install then you can upgrade both using: $ cabal update $ cabal install Cabal cabal-install New users you can get it from: http://haskell.org/cabal/download.html For users on unix systems there is a source tarball with a bootstrap script. For users on Windows systems there is a pre-compiled cabal.exe. Release notes ============= Cabal-1.6.0.2 ------------- This is a point-release in the stable 1.6.x series. It is expected that this release will be included with ghc-6.10.2. It has a number of fixes and minor improvements. The most noticeable change is that Cabal now checks at configure time that C libraries and header files are available. This is known to break a small number of packages. The maintainers of these packages have been notified. Changes since 1.6.0.1: * New configure-time check for C headers and libraries * Added language extensions present in ghc-6.10 * Added support for NamedFieldPuns extension in ghc-6.8 * Fix in configure step for ghc-6.6 on Windows * Fix warnings in Path_pkgname.hs module on Windows * Fix for exotic flags in ld-options field * Fix for using pkg-config in a package with a lib and an executable * Fix for building haddock docs for exes that use the Paths module * Fix for installing header files in subdirectories * Fix for the case of building profiling libs but not ordinary libs * Fix read-only attribute of installed files on Windows * Ignore ghc -threaded flag when profiling in ghc-6.8 and older cabal-install-0.6.2 ------------------- This release contains a number of incremental improvements, including some new features. We expect to do another 0.6.x release in the not too distant future focusing on improvements in the way package dependencies are selected. Changes since 0.6.0: * The upgrade command has been disabled in this release * The configure and install commands now have consistent behaviour * Reduce the tendency to re-install already existing packages * The --constraint= flag now works for the install command * New --preference= flag for soft constraints / version preferences * Improved bootstrap.sh script, smarter and better error checking * New cabal info command to display detailed info on packages * New cabal unpack command to download and untar a package * HTTP-4000 package required, should fix bugs with http proxies * Now works with authenticated proxies. * On Windows can now override the proxy setting using an env var * Fix compatibility with config files generated by older versions * Warn if the hackage package list is very old * More helpful --help output, mention config file and examples * Better documentation in ~/.cabal/config file * Improved command line interface for logging and build reporting * Minor improvements to some messages Changes since 0.5.2: * Constraint solver can now cope with base 3 and base 4 * Allow use of package version preferences from hackage index * More detailed output from cabal install --dry-run -v * Improved bootstrap.sh Bugs and feature requests ========================= This is an excellent opportunity to make sure your favourite bug or feature request is properly described in our bug tracker: http://hackage.haskell.org/trac/hackage/ To help us guide development priorities please add yourself to the ticket's cc list and describe why that bug or feature is important to you. Credits ======= On behalf of the Cabal hackers and the community generally I'd like to thank the people who have contributed patches for these releases: * Gleb Alexeyev * Samuel Bronson * Thomas Schilling * Ganesh Sittampalam * Andrea Vezzosi Get involved ============ There's still a lot to do! We have big plans for Cabal-2.0, cabal-install and the Hackage website. So if you're interested in helping out with this core infrastructure project then: * subscribe to the cabal-devel mailing list: http://www.haskell.org/mailman/listinfo/cabal-devel * grab the source: http://haskell.org/cabal/code.html * read the guide to the source code: http://hackage.haskell.org/trac/hackage/wiki/SourceGuide * take a look at our list of bugs and feature requests: http://hackage.haskell.org/trac/hackage/report/12 especially the easy tickets: http://hackage.haskell.org/trac/hackage/report/13 Duncan

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patch applied (cabal-install): TAG 0.6.2
by Duncan Coutts 19 Feb '09

19 Feb '09

Thu Feb 19 05:07:20 PST 2009 Duncan Coutts <duncan(a)haskell.org> tagged 0.6.2 View patch online: http://darcs.haskell.org/cabal-install/_darcs/patches/20090219130720-adfee-…

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patch applied (cabal-branches/cabal-1.6): TAG 1.6.0.2
by Duncan Coutts 19 Feb '09

19 Feb '09

Wed Feb 18 18:14:50 PST 2009 Duncan Coutts <duncan(a)haskell.org> tagged 1.6.0.2 View patch online: http://darcs.haskell.org/cabal-branches/cabal-1.6/_darcs/patches/2009021902…

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patch applied (cabal-install): Update the README
by Duncan Coutts 19 Feb '09

19 Feb '09

Thu Feb 19 05:07:05 PST 2009 Duncan Coutts <duncan(a)haskell.org> * Update the README M ./README -7 +6 View patch online: http://darcs.haskell.org/cabal-install/_darcs/patches/20090219130705-adfee-…

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patch applied (cabal-install): Add missing other-modules
by Duncan Coutts 19 Feb '09

19 Feb '09

Wed Feb 18 15:52:06 PST 2009 Duncan Coutts <duncan(a)haskell.org> * Add missing other-modules M ./cabal-install.cabal +3 View patch online: http://darcs.haskell.org/cabal-install/_darcs/patches/20090218235206-adfee-…

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patch applied (cabal-install): Add extra assertion into the top down dep planner
by Duncan Coutts 19 Feb '09

19 Feb '09

Wed Feb 18 15:46:50 PST 2009 Duncan Coutts <duncan(a)haskell.org> * Add extra assertion into the top down dep planner M ./Distribution/Client/Dependency/TopDown.hs -1 +12 View patch online: http://darcs.haskell.org/cabal-install/_darcs/patches/20090218234650-adfee-…

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patch applied (cabal-install): Bump version to 0.6.2
by Duncan Coutts 19 Feb '09

19 Feb '09

Wed Feb 18 15:10:16 PST 2009 Duncan Coutts <duncan(a)haskell.org> * Bump version to 0.6.2 M ./cabal-install.cabal -1 +1 View patch online: http://darcs.haskell.org/cabal-install/_darcs/patches/20090218231016-adfee-…

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