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path: root/pkgs/development/compilers/gerbil/build.nix
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{ gccStdenv, lib, coreutils,
  openssl, zlib, sqlite,
  version, git-version, src,
  gambit-support,
  gambit-git-version,
  gambit-stampYmd,
  gambit-stampHms,
  gambit-params }:

# We use Gambit, that works 10x better with GCC than Clang. See ../gambit/build.nix
let stdenv = gccStdenv; in

stdenv.mkDerivation rec {
  pname = "gerbil";
  inherit version;
  inherit src;

  buildInputs_libraries = [ openssl zlib sqlite ];

  # TODO: either fix all of Gerbil's dependencies to provide static libraries,
  # or give up and delete all tentative support for static libraries.
  #buildInputs_staticLibraries = map makeStaticLibraries buildInputs_libraries;

  buildInputs = buildInputs_libraries;

  postPatch = ''
    patchShebangs . ;
    grep -Fl '#!/usr/bin/env' `find . -type f -executable` | while read f ; do
      substituteInPlace "$f" --replace '#!/usr/bin/env' '#!${coreutils}/bin/env' ;
    done ;
    cat > MANIFEST <<EOF
    gerbil_stamp_version=v${git-version}
    gambit_stamp_version=v${gambit-git-version}
    gambit_stamp_ymd=${gambit-stampYmd}
    gambit_stamp_hms=${gambit-stampHms}
    EOF
    for f in src/bootstrap/gerbil/compiler/driver__0.scm \
             src/build/build-libgerbil.ss \
             src/gerbil/compiler/driver.ss ; do
      substituteInPlace "$f" --replace '"gcc"' '"${gccStdenv.cc}/bin/${gccStdenv.cc.targetPrefix}gcc"' ;
    done
  '';

## TODO: make static compilation work.
## For that, get all the packages below to somehow expose static libraries,
## so we can offer users the option to statically link them into Gambit and/or Gerbil.
## Then add the following to the postPatch script above:
#     cat > etc/gerbil_static_libraries.sh <<EOF
# OPENSSL_LIBCRYPTO=${makeStaticLibraries openssl}/lib/libcrypto.a # MISSING!
# OPENSSL_LIBSSL=${makeStaticLibraries openssl}/lib/libssl.a # MISSING!
# ZLIB=${makeStaticLibraries zlib}/lib/libz.a
# SQLITE=${makeStaticLibraries sqlite}/lib/sqlite.a # MISSING!
# EOF

  configureFlags = [
    "--prefix=$out/gerbil"
    "--enable-zlib"
    "--enable-sqlite"
    "--enable-shared"
    "--enable-march=" # Avoid non-portable invalid instructions. Use =native if local build only.
  ];

  configurePhase = ''
    export CC=${gccStdenv.cc}/bin/${gccStdenv.cc.targetPrefix}gcc \
           CXX=${gccStdenv.cc}/bin/${gccStdenv.cc.targetPrefix}g++ \
           CPP=${gccStdenv.cc}/bin/${gccStdenv.cc.targetPrefix}cpp \
           CXXCPP=${gccStdenv.cc}/bin/${gccStdenv.cc.targetPrefix}cpp \
           LD=${gccStdenv.cc}/bin/${gccStdenv.cc.targetPrefix}ld \
           XMKMF=${coreutils}/bin/false
    unset CFLAGS LDFLAGS LIBS CPPFLAGS CXXFLAGS
    ./configure ${builtins.concatStringsSep " " configureFlags}
  '';

  extraLdOptions = [
      "-L${zlib}/lib"
      "-L${openssl.out}/lib"
      "-L${sqlite.out}/lib"
    ];

  buildPhase = ''
    runHook preBuild

    # gxprof testing uses $HOME/.cache/gerbil/gxc
    export HOME=$PWD
    export GERBIL_BUILD_CORES=$NIX_BUILD_CORES
    export GERBIL_GXC=$PWD/bin/gxc
    export GERBIL_BASE=$PWD
    export GERBIL_PREFIX=$PWD
    export GERBIL_PATH=$PWD/lib
    export PATH=$PWD/bin:$PATH
    ${gambit-support.export-gambopt gambit-params}

    # Build, replacing make by build.sh
    ( cd src && sh build.sh )

    f=build/lib/libgerbil.so.ldd ; [ -f $f ] && :
    substituteInPlace "$f" --replace '(' \
      '(${lib.strings.concatStrings (map (x: "\"${x}\" " ) extraLdOptions)}'

    runHook postBuild
  '';

  installPhase = ''
    runHook preInstall
    mkdir -p $out/gerbil $out/bin
    ./install.sh
    (cd $out/bin ; ln -s ../gerbil/bin/* .)
    runHook postInstall
  '' + lib.optionalString stdenv.isDarwin ''
    libgerbil="$(realpath "$out/gerbil/lib/libgerbil.so")"
    install_name_tool -id "$libgerbil" "$libgerbil"
  '';

  dontStrip = true;

  meta = {
    description = "Gerbil Scheme";
    homepage    = "https://github.com/vyzo/gerbil";
    license     = lib.licenses.lgpl21Only; # dual, also asl20, like Gambit
    # NB regarding platforms: regularly tested on Linux and on macOS.
    # Please report success and/or failure to fare.
    platforms   = lib.platforms.unix;
    maintainers = with lib.maintainers; [ fare ];
  };

  outputsToInstall = [ "out" ];
}