110 lines
		
	
	
		
			3.9 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
			
		
		
	
	
			110 lines
		
	
	
		
			3.9 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
{stdenv, fetchurl, perl, ncurses, gmp}:
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let
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  supportedPlatforms = ["x86_64-linux" "i686-linux"];
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in
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assert stdenv.lib.elem stdenv.system supportedPlatforms;
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stdenv.mkDerivation rec {
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  version = "6.12.1";
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  name = "ghc-${version}-binary";
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  src =
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    if stdenv.system == "i686-linux" then
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      fetchurl {
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        url = "http://haskell.org/ghc/dist/${version}/ghc-${version}-i386-unknown-linux-n.tar.bz2";
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        sha256 = "15kp8mnm4ig6a7k1a1j12lyhdcs75myv6ralfywjzpl27pd77gmk";
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      }
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    else if stdenv.system == "x86_64-linux" then
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      fetchurl {
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        url = "http://haskell.org/ghc/dist/${version}/ghc-${version}-x86_64-unknown-linux-n.tar.bz2";
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        sha256 = "08cb4bgyj23qsbqay4pqs81jha40njkx63ng7l827cydx2pm3qxs";
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      }
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    else throw "cannot bootstrap GHC on this platform";
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  buildInputs = [perl];
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  postUnpack =
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    # Strip is harmful, see also below. It's important that this happens
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    # first. The GHC Cabal build system makes use of strip by default and
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    # has hardcoded paths to /usr/bin/strip in many places. We replace
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    # those below, making them point to our dummy script.
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     ''
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      mkdir "$TMP/bin"
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      for i in strip; do
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        echo '#!/bin/sh' >> "$TMP/bin/$i"
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        chmod +x "$TMP/bin/$i"
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        PATH="$TMP/bin:$PATH"
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      done
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     '' +
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    # We have to patch the GMP paths for the integer-gmp package.
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     ''
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      find . -name integer-gmp.buildinfo \
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          -exec sed -i "s@extra-lib-dirs: @extra-lib-dirs: ${gmp}/lib@" {} \;
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     '' +
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    # On Linux, use patchelf to modify the executables so that they can
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    # find editline/gmp.
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    (if stdenv.isLinux then ''
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      find . -type f -perm +100 \
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          -exec patchelf --interpreter "$(cat $NIX_GCC/nix-support/dynamic-linker)" \
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          --set-rpath "${ncurses}/lib:${gmp}/lib" {} \;
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      sed -i "s|/usr/bin/perl|perl\x00        |" ghc-${version}/ghc/stage2/build/tmp/ghc-stage2
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      sed -i "s|/usr/bin/gcc|gcc\x00        |" ghc-${version}/ghc/stage2/build/tmp/ghc-stage2
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      for prog in ld ar gcc strip ranlib; do
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        find . -name "setup-config" -exec sed -i "s@/usr/bin/$prog@$(type -p $prog)@g" {} \;
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      done
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     '' else "");
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  configurePhase = ''
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    ./configure --prefix=$out --with-gmp-libraries=${gmp}/lib --with-gmp-includes=${gmp}/include
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  '';
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  # Stripping combined with patchelf breaks the executables (they die
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  # with a segfault or the kernel even refuses the execve). (NIXPKGS-85)
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  dontStrip = true;
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  # No building is necessary, but calling make without flags ironically
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  # calls install-strip ...
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  buildPhase = "true";
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  # The binaries for Darwin use frameworks, so fake those frameworks,
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  # and create some wrapper scripts that set DYLD_FRAMEWORK_PATH so
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  # that the executables work with no special setup.
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  postInstall =
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    (if stdenv.isDarwin then
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      ''
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        mkdir -p $out/frameworks/GMP.framework/Versions/A
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        ln -s ${gmp}/lib/libgmp.dylib $out/frameworks/GMP.framework/GMP
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        ln -s ${gmp}/lib/libgmp.dylib $out/frameworks/GMP.framework/Versions/A/GMP
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        # !!! fix this
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        mv $out/bin $out/bin-orig
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        mkdir $out/bin
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        for i in $(cd $out/bin-orig && ls); do
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            echo \"#! $SHELL -e\" >> $out/bin/$i
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            echo \"DYLD_FRAMEWORK_PATH=$out/frameworks exec $out/bin-orig/$i -framework-path $out/frameworks \\\"\\$@\\\"\" >> $out/bin/$i
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            chmod +x $out/bin/$i
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        done
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      '' else "")
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    +
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      ''
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        # bah, the passing gmp doesn't work, so let's add it to the final package.conf in a quick but dirty way
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        # sed -i "s@^\(.*pkgName = PackageName \"rts\".*\libraryDirs = \\[\)\(.*\)@\\1\"${gmp}/lib\",\2@" $out/lib/ghc-${version}/package.conf
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        # Sanity check, can ghc create executables?
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        cd $TMP
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        mkdir test-ghc; cd test-ghc
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        cat > main.hs << EOF
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          module Main where
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          main = putStrLn "yes"
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        EOF
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        $out/bin/ghc --make main.hs
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        echo compilation ok
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        [ $(./main) == "yes" ]
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      '';
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  meta.platforms = supportedPlatforms;
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}
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