*** a/Python/fileutils.c	2016-10-25 02:01:16.270148214 +0100
--- b/Python/fileutils.c	2016-10-25 02:01:27.086148626 +0100
***************
*** 785,790 ****
--- 785,793 ----
  static int
  set_inheritable(int fd, int inheritable, int raise, int *atomic_flag_works)
  {
+ #ifdef EMSCRIPTEN
+     return 0;
+ #else
  #ifdef MS_WINDOWS
      HANDLE handle;
      DWORD flags;
***************
*** 897,902 ****
--- 900,906 ----
      }
      return 0;
  #endif
+ #endif
  }
  
  /* Make the file descriptor non-inheritable.