Merge pull request #26390 from asppsa/emscripten-binaryen

emscripten: add binaryen support

pkgs/development/compilers/binaryen/default.nix

@@ -0,0 +1,24 @@
+{ stdenv, cmake, fetchFromGitHub }:
+
+stdenv.mkDerivation rec {
+  version = "32";
+  rev = "version_${version}";
+  name = "binaryen-${version}";
+
+  src = fetchFromGitHub {
+    owner = "WebAssembly";
+    repo = "binaryen";
+    sha256 = "0zclw6pa2pkzrnp8ib9qwbjvq38r2h5ynfg8fjl99b5lcyz5m590";
+    inherit rev;
+  };
+
+  nativeBuildInputs = [ cmake ];
+
+  meta = with stdenv.lib; {
+    homepage = https://github.com/WebAssembly/binaryen;
+    description = "Compiler infrastructure and toolchain library for WebAssembly, in C++";
+    platforms = platforms.all;
+    maintainers = with maintainers; [ asppsa ];
+    license = licenses.asl20;
+  };
+}

pkgs/development/compilers/emscripten/default.nix

@@ -1,4 +1,6 @@
-{ stdenv, fetchFromGitHub, emscriptenfastcomp, python, nodejs, closurecompiler, jre }:
+{ stdenv, fetchFromGitHub, emscriptenfastcomp, python, nodejs, closurecompiler
+, jre, binaryen, enableWasm ? true
+}:
 
 let
   rev = "1.37.10";
@@ -36,6 +38,9 @@ stdenv.mkDerivation {
     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
+  ''
+  + stdenv.lib.optionalString enableWasm ''
+    echo "BINARYEN_ROOT = '${binaryen}'" >> $out/share/emscripten/config
   '';
 
   meta = with stdenv.lib; {

pkgs/top-level/all-packages.nix

@@ -5014,6 +5014,8 @@ with pkgs;
     stdenv = overrideCC stdenv gcc49;
   };
 
+  binaryen = callPackage ../development/compilers/binaryen { };
+
   boo = callPackage ../development/compilers/boo {
     inherit (gnome2) gtksourceview;
   };