forked from mirrors/nixpkgs
d64917ad17
* There now is full support for building Haskell packages as shared libraries
for GHC versions 7.4.2 or later. The Cabal builder recognizes the following
attributes:
- enableSharedLibraries configures Cabal to build of shared libraries in
addition to static ones. This option requires that all dependencies of
the package have been compiled for use in shared libraries, too.
- enableSharedExecutables configures Cabal to prefer shared libraries when
linking executables.
The default values for these attributes are arguments to the haskellPackages
expression.
* Haskell builds now run in a LANG="en_US.UTF-8" environment to avoid plenty
of build and test suite errors. Without this setting, GHC seems unable to
deal with the UTF-8 character encoding that's generally considered standard
in the Haskell world.
* The Cabal builder supports a new attribute 'testTarget' to specify the exact
set of tests to be run during the check phase.
* The ghc-wrapper attribute ghcVersion has been removed. Instead, we use the
ghc.version attribute, which exists in unwrapped GHC derivations, too.
87 lines
2.6 KiB
Nix
87 lines
2.6 KiB
Nix
{ stdenv, ghc, makeWrapper, coreutils, writeScript }:
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let
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ghc761OrLater = !stdenv.lib.versionOlder ghc.version "7.6.1";
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packageDBFlag = if ghc761OrLater then "-package-db" else "-package-conf";
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GHCGetPackages = writeScript "ghc-get-packages.sh" ''
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#! ${stdenv.shell}
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# Usage:
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# $1: version of GHC
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# $2: invocation path of GHC
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# $3: prefix
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version="$1"
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if test -z "$3"; then
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prefix="${packageDBFlag} "
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else
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prefix="$3"
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fi
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PATH="$2:$PATH"
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IFS=":"
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for p in $PATH; do
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PkgDir="$p/../lib/ghc-$version/package.conf.d"
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for i in "$PkgDir/"*.installedconf; do
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# output takes place here
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test -f $i && echo -n " $prefix$i"
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done
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done
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test -f "$2/../lib/ghc-$version/package.conf" && echo -n " $prefix$2/../lib/ghc-$version/package.conf"
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'';
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GHCPackages = writeScript "ghc-packages.sh" ''
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#! ${stdenv.shell} -e
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declare -A GHC_PACKAGES_HASH # using bash4 hashs to get uniq paths
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for arg in $(${GHCGetPackages} ${ghc.version} "$(dirname $0)"); do
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case "$arg" in
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${packageDBFlag}) ;;
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*)
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CANONICALIZED="$(${coreutils}/bin/readlink -f -- "$arg")"
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GHC_PACKAGES_HASH["$CANONICALIZED"]= ;;
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esac
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done
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for path in ''${!GHC_PACKAGES_HASH[@]}; do
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echo -n "$path:"
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done
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'';
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in
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stdenv.mkDerivation {
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name = "ghc-${ghc.version}-wrapper";
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buildInputs = [makeWrapper];
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propagatedBuildInputs = [ghc];
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unpackPhase = "true";
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installPhase = ''
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runHook preInstall
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mkdir -p $out/bin
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for prg in ghc ghci ghc-${ghc.version} ghci-${ghc.version}; do
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makeWrapper $ghc/bin/$prg $out/bin/$prg --add-flags "\$(${GHCGetPackages} ${ghc.version} \"\$(dirname \$0)\")"
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done
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for prg in runghc runhaskell; do
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makeWrapper $ghc/bin/$prg $out/bin/$prg --add-flags "\$(${GHCGetPackages} ${ghc.version} \"\$(dirname \$0)\" \" ${packageDBFlag} --ghc-arg=\")"
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done
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for prg in ghc-pkg ghc-pkg-${ghc.version}; do
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makeWrapper $ghc/bin/$prg $out/bin/$prg --add-flags "\$(${GHCGetPackages} ${ghc.version} \"\$(dirname \$0)\" -${packageDBFlag}=)"
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done
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for prg in hp2ps hpc hasktags hsc2hs; do
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test -x $ghc/bin/$prg && ln -s $ghc/bin/$prg $out/bin/$prg
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done
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mkdir -p $out/nix-support
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ln -s $out/nix-support/propagated-build-inputs $out/nix-support/propagated-user-env-packages
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mkdir -p $out/share/doc
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ln -s $ghc/lib $out/lib
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ln -s $ghc/share/doc/ghc $out/share/doc/ghc-${ghc.version}
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runHook postInstall
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'';
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inherit ghc GHCGetPackages GHCPackages;
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inherit (ghc) meta version;
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}
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