Merge remote-tracking branch 'origin/main' into binaryen_embind

CMakeLists.txt

@@ -383,10 +383,13 @@ if(EMSCRIPTEN)
     # On Node.js, make the tools immediately usable.
     add_link_flag("-sNODERAWFS")
   endif()
-  # in opt builds, LTO helps so much (>20%) it's worth slow compile times
-  #add_nondebug_compile_flag("-flto")
-  add_compile_flag("-DEMSCRIPTEN_HAS_UNBOUND_TYPE_NAMES=0") # XXX - ?
-endif()
+    # in opt builds, LTO helps so much (>20%) it's worth slow compile times
+    add_nondebug_compile_flag("-flto")
+    if(EMSCRIPTEN_ENABLE_WASM64)
+      add_compile_flag("-sMEMORY64 -Wno-experimental")
+      add_link_flag("-sMEMORY64")
+    endif()
+  endif()
 
 # clang doesn't print colored diagnostics when invoked from Ninja
 if(UNIX AND CMAKE_GENERATOR STREQUAL "Ninja")