I am trying to test ghc onto an ARM system but I get the following circular dependencies when emerging ghc: # USE=ghcbootstrap emerge -v ghc These are the packages that would be merged, in order: Calculating dependencies... done! [nomerge ] dev-lang/ghc-7.6.3-r1:0/7.6.3 USE="ghcbootstrap gmp -binary -doc -ghcmakebinary -llvm" [ebuild N *] dev-haskell/happy-1.18.10 USE="-doc" 157 kB [ebuild N *] dev-haskell/mtl-2.1.2-r1:0/2.1.2 USE="-doc -hscolour -profile" 14 kB [ebuild N *] dev-haskell/transformers-0.3.0.0-r1:0/0.3.0.0 USE="-doc -hscolour -profile" 20 kB [ebuild N *] dev-haskell/alex-3.0.5 USE="-doc {-test}" 98 kB [ebuild N *] dev-haskell/quickcheck-2.6:2/2.6 USE="template_haskell -doc -hscolour -profile" 26 kB [ebuild N *] dev-haskell/random-1.0.1.1-r1:0/1.0.1.1 USE="-doc -hscolour -profile" 9 kB [ebuild N *] dev-haskell/extensible-exceptions-0.1.1.4:0/0.1.1.4 USE="-doc -hscolour -profile" 9 kB [ebuild N *] dev-haskell/cabal-1.18.0:0/1.18.0 USE="-doc -profile {-test}" 316 kB [ebuild N *] dev-lang/ghc-7.6.3-r1:0/7.6.3 USE="ghcbootstrap gmp -binary -doc -ghcmakebinary -llvm" 0 kB Total: 9 packages (9 new), Size of downloads: 646 kB * Error: circular dependencies: (dev-lang/ghc-7.6.3-r1::gentoo, ebuild scheduled for merge) depends on (dev-haskell/alex-3.0.5::gentoo, ebuild scheduled for merge) (buildtime) (dev-lang/ghc-7.6.3-r1::gentoo, ebuild scheduled for merge) (buildtime) I am willing to do more testing if needed.
USE=ghcbootstrap is a bit special. It needs already working/installed ghc in your system (thus we don't mind circular depends here). If you already have ghc in PATH variable (but installed not via emerge) then you can try to use -O // --nodeps to get first working snapshot of ghc. I usually steal debian's ghc to start bootstrap. What ARM you are trying to use BTW? (the 'uname -m' bit is interesting)
(In reply to Sergei Trofimovich from comment #1) > USE=ghcbootstrap is a bit special. > > It needs already working/installed ghc in your system (thus we don't > mind circular depends here). > > If you already have ghc in PATH variable (but installed not via emerge) > then you can try to use -O // --nodeps to get first working snapshot > of ghc. > > I usually steal debian's ghc to start bootstrap. I will try that. > What ARM you are trying to use BTW? (the 'uname -m' bit is interesting) Not something very original. I am simply trying to use compile and use haskell programs on a Raspberry Pi: # uname -m armv6l To be frank, I didn't expect it to success since arm was not listed in ghc's keywords (and I will be surprised that the Rapsberry could compile it by itself). Nevertheless, I keep trying: do you know what could be done or what is still missing to have haskell installed on ARM systems with Gentoo? Does anyone have tried or are there still important difficulties about ARM systems?
(In reply to Julien Sanchez from comment #2) > (In reply to Sergei Trofimovich from comment #1) > > > > I usually steal debian's ghc to start bootstrap. > > I will try that. No luck with debian package. I downloaded ghc_7.4.1-4_armhf.deb (and libffi5_3.0.10-3+b1_armhf.deb since it depends on libffi.so.5) but I get: "Illegal instruction". There would be another way.
To summarise: USE=ghcbootstrap circular deps is intended. GHC slowly gets better cross-compilation support. Soon we will get standard mechanism to bootstrap compiler for any arch using CHOST/CBUILD/CTARGET varuables (just like gcc).
