112 lines
3.5 KiB
Nix
112 lines
3.5 KiB
Nix
{ lib, stdenv, fetchFromGitHub, python3, nodejs, closurecompiler
|
|
, jre, binaryen
|
|
, llvmPackages_11
|
|
, symlinkJoin, makeWrapper
|
|
, mkYarnModules
|
|
}:
|
|
|
|
stdenv.mkDerivation rec {
|
|
pname = "emscripten";
|
|
version = "2.0.1";
|
|
|
|
llvmEnv = symlinkJoin {
|
|
name = "emscripten-llvm-${version}";
|
|
paths = with llvmPackages_11; [ clang-unwrapped lld llvm ];
|
|
};
|
|
|
|
nodeModules = mkYarnModules {
|
|
name = "emscripten-node-modules-${version}";
|
|
inherit pname version;
|
|
# it is vitally important the the package.json has name and version fields
|
|
packageJSON = ./package.json;
|
|
yarnLock = ./yarn.lock;
|
|
yarnNix = ./yarn.nix;
|
|
};
|
|
|
|
src = fetchFromGitHub {
|
|
owner = "emscripten-core";
|
|
repo = "emscripten";
|
|
sha256 = "06dsd819qjv4n2ihrz1mpn5aigmbv0gpkm7iw06wrqx30nzphnpk";
|
|
rev = version;
|
|
};
|
|
|
|
nativeBuildInputs = [ makeWrapper ];
|
|
buildInputs = [ nodejs python3 ];
|
|
|
|
buildPhase = ''
|
|
patchShebangs .
|
|
|
|
# fixes cmake support
|
|
sed -i -e "s/print \('emcc (Emscript.*\)/sys.stderr.write(\1); sys.stderr.flush()/g" emcc.py
|
|
|
|
# disables cache in user home, use installation directory instead
|
|
sed -i '/^def/!s/root_is_writable()/True/' tools/shared.py
|
|
sed -i "/^def check_sanity/a\\ return" tools/shared.py
|
|
|
|
# required for wasm2c
|
|
ln -s ${nodeModules}/node_modules .
|
|
|
|
echo "EMSCRIPTEN_ROOT = '$appdir'" > .emscripten
|
|
echo "LLVM_ROOT = '${llvmEnv}/bin'" >> .emscripten
|
|
echo "NODE_JS = '${nodejs}/bin/node'" >> .emscripten
|
|
echo "JS_ENGINES = [NODE_JS]" >> .emscripten
|
|
echo "CLOSURE_COMPILER = ['${closurecompiler}/bin/closure-compiler']" >> .emscripten
|
|
echo "JAVA = '${jre}/bin/java'" >> .emscripten
|
|
# to make the test(s) below work
|
|
# echo "SPIDERMONKEY_ENGINE = []" >> .emscripten
|
|
echo "BINARYEN_ROOT = '${binaryen}'" >> .emscripten
|
|
|
|
# make emconfigure/emcmake use the correct (wrapped) binaries
|
|
sed -i "s|^EMCC =.*|EMCC='$out/bin/emcc'|" tools/shared.py
|
|
sed -i "s|^EMXX =.*|EMXX='$out/bin/em++'|" tools/shared.py
|
|
sed -i "s|^EMAR =.*|EMAR='$out/bin/emar'|" tools/shared.py
|
|
sed -i "s|^EMRANLIB =.*|EMRANLIB='$out/bin/emranlib'|" tools/shared.py
|
|
|
|
# The tests use the C compiler to compile generated C code,
|
|
# use the wrapped compiler
|
|
sed -i 's/shared.CLANG_CC/"cc"/' tests/runner.py
|
|
'';
|
|
|
|
installPhase = ''
|
|
appdir=$out/share/emscripten
|
|
mkdir -p $appdir
|
|
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 EM_EXCLUSIVE_CACHE_ACCESS 1 \
|
|
--set PYTHON ${python3}/bin/python
|
|
done
|
|
|
|
# precompile libc (etc.) in all variants:
|
|
pushd $TMPDIR
|
|
echo 'int main() { return 42; }' >test.c
|
|
for LTO in -flto ""; do
|
|
# wasm2c doesn't work with PIC
|
|
$out/bin/emcc -s WASM2C -s STANDALONE_WASM $LTO test.c
|
|
|
|
for RELOCATABLE in "" "-s RELOCATABLE"; do
|
|
$out/bin/emcc $RELOCATABLE $LTO test.c
|
|
done
|
|
done
|
|
popd
|
|
|
|
export PYTHON=${python3}/bin/python
|
|
export NODE_PATH=${nodeModules}/node_modules
|
|
pushd $appdir
|
|
python tests/runner.py test_hello_world
|
|
popd
|
|
'';
|
|
|
|
meta = with 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;
|
|
};
|
|
}
|