Hi all, I'm trying to package the haskell music-suite for nix, and so I'm running down all the dependencies, packaging them. One of these is roman-numerals ( https://hackage.haskell.org/package/roman-numerals ). I use cabal2nix to generate the nix-expression, then I install it as usual with
nix-env -f . -iA haskellPackages.romanNumerals But here it is the error I get: installing `haskell-roman-numerals-ghc7.8.3-0.5.1.4-shared' these derivations will be built: /nix/store/cgxwind7xv4qkk4n2a0kf9y071xgjk25-haskell-roman-numerals-ghc7.8.3-0.5.1.4-shared.drv building path(s) `/nix/store/x7bpcb7cq9hvpda3r21sqwcb6m0rscaz-haskell-roman-numerals-ghc7.8.3-0.5.1.4-shared' [pbuilding /nix/store/x7bpcb7cq9hvpda3r21sqwcb6m0rscaz-haskell-roman-numerals-ghc7.8.3-0.5.1.4-shared [punpacking sources [3punpacking source archive /nix/store/v3qj2h0ckbwqw08bzdmv7kyf1fsd6jbd-roman-numerals-0.5.1.4.tar.gz [qsource root is roman-numerals-0.5.1.4 [q[ppatching sources [q[pconfiguring [1 of 1] Compiling Main ( Setup.hs, /tmp/nix-build-haskell-roman-numerals-ghc7.8.3-0.5.1.4-shared.drv-0/Main.o ) Linking Setup ... configure flags: --enable-split-objs --disable-library-profiling --enable-shared --enable-library-vanilla --enable-executable-dynamic --enable-tests --ghc-option=-optl=-Wl,-rpath=/nix/store/x7bpcb7cq9hvpda3r21sqwcb6m0rscaz-haskell-roman-numerals-ghc7.8.3-0.5.1.4-shared/lib/ghc-7.8.3/roman-numerals-0.5.1.4 Configuring roman-numerals-0.5.1.4... Setup: At least the following dependencies are missing: text >=0.11 && <1.2 [q[pbuilding Setup: Run the 'configure' command first. [q[qbuilder for `/nix/store/cgxwind7xv4qkk4n2a0kf9y071xgjk25-haskell-roman-numerals-ghc7.8.3-0.5.1.4-shared.drv' failed with exit code 1 error: build of `/nix/store/cgxwind7xv4qkk4n2a0kf9y071xgjk25-haskell-roman-numerals-ghc7.8.3-0.5.1.4-shared.drv' failed I see it's complaining about the package text, because I have Text version 1.2.0.0 installed (the one that's currently packaged in nixos-unstable), and the package would like to have a lower version. Now, what is the preferred course of action here? Should I package also a version of text pre 1.2.0.0? What are naming conventions in this case?
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