#700: seemingly too liberal behaviour on overlapping dependency constraints across packages ---------------------------------+------------------------------------------ Reporter: kowey | Owner: Type: defect | Status: new Priority: normal | Milestone: Component: cabal-install tool | Version: 1.6.0.3 Severity: normal | Keywords: Difficulty: unknown | Ghcversion: Platform: | ---------------------------------+------------------------------------------ There's a high chance this is not actually a bug, but I'm filing one anyway. In http://bugs.darcs.net/isuse1763 we have darcs-2.4 which depends on mmap
= 0.2 and on hashed-storage >= 0.4.7 && < 0.5
The hashed-storage 0.4.x line depends on mmap == 0.4.* The bug in darcs happened when darcs was linked against mmap-0.5 while hashed-storage against mmap-0.4. Is it reasonable to expect that if I depend on a package, that the package can indirectly impose at least soft constraints (on the cabal-install level) on our shared dependencies? Should cabal-install have been smart enough to work out that darcs should actually only pick up mmap 0.4? I think I could be quite happy with "no" -- Ticket URL: http://hackage.haskell.org/trac/hackage/ticket/700 Hackage http://haskell.org/cabal/ Hackage: Cabal and related projects