[Hackage] #216: need a way to specify the foreign libraries a package depends on
#216: need a way to specify the foreign libraries a package depends on ----------------------------------+----------------------------------------- Reporter: ross@soi.city.ac.uk | Owner: Type: enhancement | Status: new Priority: normal | Milestone: Component: Cabal library | Version: 1.2.3.0 Severity: major | Keywords: Difficulty: normal | Ghcversion: 6.8.2 Platform: Linux | ----------------------------------+----------------------------------------- Package descriptions allow one to specify which Haskell libraries a package depends on, but foreign ones. Designing something that can be used with native package managers is complicated because many of them alter the upstream library names in unpredictable ways. -- Ticket URL: http://hackage.haskell.org/trac/hackage/ticket/216 Hackage http://haskell.org/cabal/ Hackage: Cabal and related projects
#216: need a way to specify the foreign libraries a package depends on ----------------------------------+----------------------------------------- Reporter: ross@soi.city.ac.uk | Owner: Type: enhancement | Status: new Priority: normal | Milestone: Component: Cabal library | Version: 1.2.3.0 Severity: major | Resolution: Keywords: | Difficulty: normal Ghcversion: 6.8.2 | Platform: Linux ----------------------------------+----------------------------------------- Comment (by duncan): Note that we already have some partial information, like `extra- libraries:`, `includes:`, `pkgconfig-depends:` and `frameworks:`. -- Ticket URL: http://hackage.haskell.org/trac/hackage/ticket/216#comment:1 Hackage http://haskell.org/cabal/ Hackage: Cabal and related projects
#216: need a way to specify the foreign libraries a package depends on ----------------------------------+----------------------------------------- Reporter: ross@soi.city.ac.uk | Owner: Type: enhancement | Status: new Priority: normal | Milestone: Component: Cabal library | Version: 1.2.3.0 Severity: major | Resolution: Keywords: | Difficulty: normal Ghcversion: 6.8.2 | Platform: Linux ----------------------------------+----------------------------------------- Changes (by dons): * cc: dons@galois.com (added) Comment: In addition, we can see the lack of checking for the existence of C libs breaking test builds on hackage, and breaking cabal-install downloads. pcre-light is a good example: no way to test pcre.h is available, without resorting to autoconf. One solution here might be to reuse/duplicate autoconf functionality to check if extra-libraries are available? -- Ticket URL: http://hackage.haskell.org/trac/hackage/ticket/216#comment:2 Hackage http://haskell.org/cabal/ Hackage: Cabal and related projects
#216: need a way to specify the foreign libraries a package depends on ----------------------------------+----------------------------------------- Reporter: ross@soi.city.ac.uk | Owner: Type: enhancement | Status: new Priority: normal | Milestone: Component: Cabal library | Version: 1.2.3.0 Severity: major | Resolution: Keywords: | Difficulty: normal Ghcversion: 6.8.2 | Platform: Linux ----------------------------------+----------------------------------------- Comment (by duncan): See also #177, suggestion that we can at least check at configure time if all required C libs and header files can be found. Of course that does not relate them back to what packages those C libs belong to, but it'd give better error messages. -- Ticket URL: http://hackage.haskell.org/trac/hackage/ticket/216#comment:3 Hackage http://haskell.org/cabal/ Hackage: Cabal and related projects
#216: need a way to specify the foreign libraries a package depends on ----------------------------------+----------------------------------------- Reporter: ross@soi.city.ac.uk | Owner: Type: enhancement | Status: new Priority: normal | Milestone: Component: Cabal library | Version: 1.2.3.0 Severity: major | Resolution: Keywords: | Difficulty: normal Ghcversion: 6.8.2 | Platform: Linux ----------------------------------+----------------------------------------- Comment (by guest): #177 is actually about checking for directories. See also: * #15 and #159 - implement dependency analysis * #262 - check for required foreign libraries -- Ticket URL: http://hackage.haskell.org/trac/hackage/ticket/216#comment:4 Hackage http://haskell.org/cabal/ Hackage: Cabal and related projects
#216: need a way to specify the foreign libraries a package depends on ----------------------------------+----------------------------------------- Reporter: ross@soi.city.ac.uk | Owner: Type: enhancement | Status: new Priority: normal | Milestone: Component: Cabal library | Version: 1.2.3.0 Severity: major | Resolution: Keywords: | Difficulty: normal Ghcversion: 6.8.2 | Platform: Linux ----------------------------------+----------------------------------------- Comment (by duncan): Module/file dependency analysis is not relevant (#15 and #159). That's a different kind of dependency. #177 and #262 are closely related though. -- Ticket URL: http://hackage.haskell.org/trac/hackage/ticket/216#comment:5 Hackage http://haskell.org/cabal/ Hackage: Cabal and related projects
#216: need a way to specify the foreign libraries a package depends on ----------------------------------+----------------------------------------- Reporter: ross@soi.city.ac.uk | Owner: Type: enhancement | Status: new Priority: normal | Milestone: Cabal-1.6 Component: Cabal library | Version: 1.2.3.0 Severity: major | Resolution: Keywords: | Difficulty: normal Ghcversion: 6.8.2 | Platform: Linux ----------------------------------+----------------------------------------- Changes (by duncan): * milestone: => Cabal-1.6 -- Ticket URL: http://hackage.haskell.org/trac/hackage/ticket/216#comment:6 Hackage http://haskell.org/cabal/ Hackage: Cabal and related projects
#216: need a way to specify the foreign libraries a package depends on ----------------------------------+----------------------------------------- Reporter: ross@soi.city.ac.uk | Owner: Type: enhancement | Status: new Priority: normal | Milestone: Cabal-1.6 Component: Cabal library | Version: 1.2.3.0 Severity: major | Resolution: Keywords: | Difficulty: normal Ghcversion: 6.8.2 | Platform: Linux ----------------------------------+----------------------------------------- Comment (by duncan): Do we really need this? I'm not sure we do. We can already specify that we need C libs and headers (and frameworks and pkg-config packages). Do we also need to be able to specify the native packages that provide those C libs and headers? When we make native packages from cabal packages we can derive which other native packages provide the C libs and headers. For example if we have `extra-libraries: z` then the cabal->native tool just asks the package manager which package provides the file `/usr/lib/libz.so`. Obviously this is system-specific. -- Ticket URL: http://hackage.haskell.org/trac/hackage/ticket/216#comment:7 Hackage http://haskell.org/cabal/ Hackage: Cabal and related projects
Do we really need this? I'm not sure we do.
We can already specify that we need C libs and headers (and frameworks and pkg-config packages). Do we also need to be able to specify the native
#216: need a way to specify the foreign libraries a package depends on ----------------------------------+----------------------------------------- Reporter: ross@soi.city.ac.uk | Owner: Type: enhancement | Status: closed Priority: normal | Milestone: Cabal-1.6 Component: Cabal library | Version: 1.2.3.0 Severity: major | Resolution: invalid Keywords: | Difficulty: normal Ghcversion: 6.8.2 | Platform: Linux ----------------------------------+----------------------------------------- Changes (by ross@soi.city.ac.uk): * status: new => closed * resolution: => invalid Comment: Replying to [comment:7 duncan]: packages that provide those C libs and headers? OK, I'll buy that. -- Ticket URL: http://hackage.haskell.org/trac/hackage/ticket/216#comment:8 Hackage http://haskell.org/cabal/ Hackage: Cabal and related projects
#216: need a way to specify the foreign libraries a package depends on ----------------------------------+----------------------------------------- Reporter: ross@soi.city.ac.uk | Owner: Type: enhancement | Status: reopened Priority: normal | Milestone: Cabal-1.6 Component: Cabal library | Version: 1.2.3.0 Severity: major | Resolution: Keywords: | Difficulty: normal Ghcversion: 6.8.2 | Platform: Linux ----------------------------------+----------------------------------------- Changes (by lemming): * status: closed => reopened * resolution: invalid => Comment: We have support for different compilers, why not also having support for different package systems? We could either sort the dependencies with respect to distributions: {{{ Debian-Depends: zlib-devel, alsa-devel Fedore-Depends: zlib-devel, alsa-devel }}} or with respect to needed files: {{{ File-Depends: zlib.h - zlib-devel.rpm >= 0.4, zlib-devel.deb >= 0.4 File-Depends: asound.h - alsa-devel.rpm >= 2.0, alsa-devel.deb >= 2.0 }}} -- Ticket URL: http://hackage.haskell.org/trac/hackage/ticket/216#comment:9 Hackage http://haskell.org/cabal/ Hackage: Cabal and related projects
#216: need a way to specify the foreign libraries a package depends on ----------------------------------+----------------------------------------- Reporter: ross@soi.city.ac.uk | Owner: Type: enhancement | Status: reopened Priority: normal | Milestone: _|_ Component: Cabal library | Version: 1.2.3.0 Severity: major | Resolution: Keywords: | Difficulty: normal Ghcversion: 6.8.2 | Platform: Linux ----------------------------------+----------------------------------------- Changes (by duncan): * milestone: Cabal-1.6 => _|_ Comment: I think the native package conversion tools should be doing this reverse dependency lookup, matching headers, C libs or build tools that packages need to native packages. It does not scale to ask package authors to know what native package name and version is needed on each different system (in particular they would have no way to test it). -- Ticket URL: http://hackage.haskell.org/trac/hackage/ticket/216#comment:10 Hackage http://haskell.org/cabal/ Hackage: Cabal and related projects
#216: need a way to specify the foreign libraries a package depends on ----------------------------------+----------------------------------------- Reporter: ross@soi.city.ac.uk | Owner: Type: enhancement | Status: closed Priority: normal | Milestone: _|_ Component: Cabal library | Version: 1.2.3.0 Severity: major | Resolution: wontfix Keywords: | Difficulty: normal Ghcversion: 6.8.2 | Platform: Linux ----------------------------------+----------------------------------------- Changes (by duncan): * status: reopened => closed * resolution: => wontfix Comment: Closing again. Based on the previous discussion I'm satisfied that we do not need this. -- Ticket URL: http://hackage.haskell.org/trac/hackage/ticket/216#comment:11 Hackage http://haskell.org/cabal/ Hackage: Cabal and related projects
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