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{ emscriptenVersion, stdenv, fetchFromGitHub, emscriptenfastcomp, python, nodejs, closurecompiler
, jre, binaryen, enableWasm ? true , cmake
}:
let
rev = emscriptenVersion;
appdir = "share/emscripten";
binaryenVersioned = binaryen.override { emscriptenRev = rev; };
in
stdenv.mkDerivation {
name = "emscripten-${rev}";
src = fetchFromGitHub {
owner = "emscripten-core";
repo = "emscripten";
sha256 = "1j3f0hpy05qskaiyv75l7wv4n0nzxhrh9b296zchx3f6f9h2rghq";
inherit rev;
};
buildInputs = [ nodejs cmake python ];
buildCommand = ''
mkdir -p $out/${appdir}
cp -r $src/* $out/${appdir}
chmod -R +w $out/${appdir}
grep -rl '^#!/usr.*python' $out/${appdir} | xargs sed -i -s 's@^#!/usr.*python.*@#!${python}/bin/python@'
sed -i -e "s,EM_CONFIG = '~/.emscripten',EM_CONFIG = '$out/${appdir}/config'," $out/${appdir}/tools/shared.py
sed -i -e 's,^.*did not see a source tree above the LLVM.*$, return True,' $out/${appdir}/tools/shared.py
sed -i -e 's,def check_sanity(force=False):,def check_sanity(force=False):\n return,' $out/${appdir}/tools/shared.py
# fixes cmake support
sed -i -e "s/print \('emcc (Emscript.*\)/sys.stderr.write(\1); sys.stderr.flush()/g" $out/${appdir}/emcc.py
mkdir $out/bin
ln -s $out/${appdir}/{em++,em-config,emar,embuilder.py,emcc,emcmake,emconfigure,emlink.py,emmake,emranlib,emrun,emscons} $out/bin
echo "EMSCRIPTEN_ROOT = '$out/${appdir}'" > $out/${appdir}/config
echo "LLVM_ROOT = '${emscriptenfastcomp}/bin'" >> $out/${appdir}/config
echo "PYTHON = '${python}/bin/python'" >> $out/${appdir}/config
echo "NODE_JS = '${nodejs}/bin/node'" >> $out/${appdir}/config
echo "JS_ENGINES = [NODE_JS]" >> $out/${appdir}/config
echo "COMPILER_ENGINE = NODE_JS" >> $out/${appdir}/config
echo "CLOSURE_COMPILER = '${closurecompiler}/share/java/closure-compiler-v${closurecompiler.version}.jar'" >> $out/${appdir}/config
echo "JAVA = '${jre}/bin/java'" >> $out/${appdir}/config
# to make the test(s) below work
echo "SPIDERMONKEY_ENGINE = []" >> $out/${appdir}/config
''
+ stdenv.lib.optionalString enableWasm ''
echo "BINARYEN_ROOT = '${binaryenVersioned}'" >> $out/share/emscripten/config
''
+
''
echo "--------------- running test -----------------"
# quick hack to get the test working
HOME=$TMPDIR
cp $out/${appdir}/config $HOME/.emscripten
export PATH=$PATH:$out/bin
#export EMCC_DEBUG=2
${python}/bin/python $src/tests/runner.py test_hello_world
echo "--------------- /running test -----------------"
'';
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;
};
}
|
