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{ stdenv, fetchFromGitHub, python3, nodejs, closurecompiler
, jre, binaryen
, llvmPackages_11
, symlinkJoin, makeWrapper
, mkYarnModules
}:
stdenv.mkDerivation rec {
pname = "emscripten";
# 2.0.1 requires unreleased binaryen version (as of 2020-08-28)
version = "2.0.0";
llvmEnv = symlinkJoin {
name = "emscripten-llvm-${version}";
paths = with llvmPackages_11; [ clang-unwrapped lld llvm ];
};
nodeModules = mkYarnModules {
name = "emscripten-node-modules-${version}";
inherit pname version;
packageJSON = ./package.json;
yarnLock = ./yarn.lock;
yarnNix = ./yarn.nix;
};
src = fetchFromGitHub {
owner = "emscripten-core";
repo = "emscripten";
sha256 = "1ihr1v8dlq5xq97i59n7s1hhz5pkafi6556ppgzjmmhiiraz2mkh";
rev = version;
};
nativeBuildInputs = [ makeWrapper ];
buildInputs = [ nodejs python3 ];
outputs = [ "out" "appdir" ];
buildPhase = ''
patchShebangs .
# fixes cmake support
sed -i -e "s/print \('emcc (Emscript.*\)/sys.stderr.write(\1); sys.stderr.flush()/g" emcc.py
echo "EMSCRIPTEN_ROOT = '$appdir'" > .emscripten
echo "LLVM_ROOT = '${llvmEnv}/bin'" >> .emscripten
echo "NODE_JS = '${nodejs}/bin/node'" >> .emscripten
echo "JS_ENGINES = [NODE_JS]" >> .emscripten
echo "COMPILER_ENGINE = NODE_JS" >> .emscripten
echo "CLOSURE_COMPILER = '${closurecompiler}/share/java/closure-compiler-v${closurecompiler.version}.jar'" >> .emscripten
echo "JAVA = '${jre}/bin/java'" >> .emscripten
# to make the test(s) below work
echo "SPIDERMONKEY_ENGINE = []" >> .emscripten
echo "BINARYEN_ROOT = '${binaryen}'" >> .emscripten
'';
installPhase = ''
rm -rf cache
cp -r . $appdir
chmod -R +w $appdir
mkdir -p $out/bin
for b in em++ em-config emar embuilder.py emcc emcmake emconfigure emlink.py emmake emranlib emrun emscons; do
makeWrapper $appdir/$b $out/bin/$b \
--set NODE_PATH ${nodeModules}/node_modules \
--set PYTHON ${python3}/bin/python
done
'';
doCheck = true;
checkPhase = ''
#export EMCC_DEBUG=2
export PYTHON=${python3}/bin/python
export HOME=$TMPDIR
python tests/runner.py test_hello_world
'';
meta = with stdenv.lib; {
homepage = "https://github.com/emscripten-core/emscripten";
description = "An LLVM-to-JavaScript Compiler";
platforms = platforms.all;
maintainers = with maintainers; [ qknight matthewbauer ];
license = licenses.ncsa;
};
}
|
