gh-160161 Fix node_entry.mjs with newest versions of Emscripten (#160264)

Applies an upstream-recommended workaround to work around the
removal of ``FS.filesystems``.

Author: hoodmane

Platforms/emscripten/node_entry.mjs

@@ -22,7 +22,7 @@ function rootDirsToMount(Module) {
 function mountDirectories(Module) {
   for (const dir of rootDirsToMount(Module)) {
     Module.FS.mkdirTree(dir);
-    Module.FS.mount(Module.FS.filesystems.NODEFS, { root: dir }, dir);
+    Module.FS.mount(Module.NODEFS, { root: dir }, dir);
   }
 }
 

configure

@@ -2449,7 +2449,7 @@ AS_CASE([$ac_sys_system],
     dnl Include file system support
     AS_VAR_APPEND([LINKFORSHARED], [" -sFORCE_FILESYSTEM -lidbfs.js -lnodefs.js -lproxyfs.js -lworkerfs.js"])
     AS_VAR_APPEND([LINKFORSHARED], [" -sEXPORTED_RUNTIME_METHODS=FS,callMain,ENV,HEAPU32,TTY,ERRNO_CODES"])
-    AS_VAR_APPEND([LINKFORSHARED], [" -sEXPORTED_FUNCTIONS=_main,_Py_Version,_PyGILState_GetThisThreadState"])
+    AS_VAR_APPEND([LINKFORSHARED], [" -sEXPORTED_FUNCTIONS=_main,_Py_Version,_PyGILState_GetThisThreadState,NODEFS"])
     AS_VAR_APPEND([LINKFORSHARED], [" -sSTACK_SIZE=5MB"])
     dnl Avoid bugs in JS fallback string decoding path
     AS_VAR_APPEND([LINKFORSHARED], [" -sTEXTDECODER=2"])