nixpkgs/pkgs/development/compilers/emscripten/default.nix
Alastair Pharo 497e50cf16 emscripten: use matching binaryen version (#37427)
This changes the emscripten package so that it specifies the rev from
the binaryen repo to use, and sets it to always use the version that has
been tagged for use with that version of emscripten.  This should force
future updates of emscripten to also update binaryen.

Binaryen can also be installed as a stand-alone package, so there's some
logic added to the binaryen package to allow building in both ways, and
distinguishing between them.
2018-03-20 15:45:19 +01:00

71 lines
2.8 KiB
Nix

{ emscriptenVersion, stdenv, fetchFromGitHub, emscriptenfastcomp, python, nodejs, closurecompiler, pkgs
, jre, binaryen, enableWasm ? true , python2Packages, cmake
}:
let
rev = emscriptenVersion;
appdir = "share/emscripten";
binaryenVersioned = binaryen.override { emscriptenRev = rev; };
in
stdenv.mkDerivation {
name = "emscripten-${rev}";
src = fetchFromGitHub {
owner = "kripken";
repo = "emscripten";
sha256 = "02p0cp86vd1mydlpq544xbydggpnrq9dhbxx7h08j235frjm5cdc";
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/kripken/emscripten;
description = "An LLVM-to-JavaScript Compiler";
platforms = platforms.all;
maintainers = with maintainers; [ qknight matthewbauer ];
license = licenses.ncsa;
};
}