Update to emscripten 1.38.44 (#906)

Makefile.envs

@@ -1,4 +1,4 @@
-export EMSCRIPTEN_VERSION = 1.38.43
+export EMSCRIPTEN_VERSION = 1.38.44
 export BINARYEN_VERSION = version_84
 
 export PATH := $(PYODIDE_ROOT)/ccache:$(PYODIDE_ROOT)/emsdk/emsdk:$(PYODIDE_ROOT)/emsdk/emsdk/node/12.18.1_64bit/bin:$(PYODIDE_ROOT)/emsdk/emsdk/binaryen/bin/:$(PYODIDE_ROOT)/emsdk/emsdk/fastcomp/emscripten/:$(PATH)

emsdk/patches/dynCall_so.patch

@@ -1,8 +1,18 @@
-diff --git a/emsdk/fastcomp/emscripten/src/support.js b/emsdk/fastcomp/emscripten/src/support.js
-index 8e1df8e82..4d07d6bef 100644
 --- a/emsdk/fastcomp/emscripten/src/support.js
 +++ b/emsdk/fastcomp/emscripten/src/support.js
-@@ -471,7 +471,18 @@
+@@ -338,6 +338,11 @@ function relocateExports(exports, memoryBase, tableBase, moduleLocal) {
+       }
+ #endif
+     }
++    if (e.startsWith("dynCall_")) {
++      if (!Module.hasOwnProperty(e)) {
++        Module[e] = value;
++      }
++    }
+     relocated[e] = value;
+     if (moduleLocal) {
+ #if WASM_BACKEND
+@@ -510,7 +515,18 @@ function loadWebAssemblyModule(binary, flags) {
            // present in the dynamic library but not in the main JS,
            // and the dynamic library cannot provide JS for it. Use
            // the generic "X" invoke for it.
@@ -10,7 +20,7 @@ index 8e1df8e82..4d07d6bef 100644
 +          var dynCallName = 'dynCall_' + prop.slice(7);
 +          return obj[prop] = function() {
 +            var sp = stackSave();
-+            try { 
++            try {
 +              var args = Array.prototype.slice.call(arguments);
 +              return Module[dynCallName].apply(null, args);
 +            } catch(e) {
@@ -22,15 +32,3 @@ index 8e1df8e82..4d07d6bef 100644
          }
          // otherwise this is regular function import - call it indirectly
          return obj[prop] = function() {
-@@ -530,6 +541,11 @@
-           }
- #endif
-         }
-+        if (e.startsWith("dynCall_")) {
-+          if (!Module.hasOwnProperty(e)) {
-+            Module[e] = value;
-+          }
-+        }
-         exports[e] = value;
- #if WASM_BACKEND
-         moduleLocal['_' + e] = value;