[Bug driver/68808] "--sysroot" not propagated to linker when "--specs" is used

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68808

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Yes because the specs are setup with the specific --sysroot option supplied.

The code sets up the sysroot spec only if the --sysroot is supplied:
  /* Pass the --sysroot option to the linker, if it supports that.  If
     there is a sysroot_suffix_spec, it has already been processed by
     this point, so target_system_root really is the system root we
     should be using.  */
  if (target_system_root)
    {
      obstack_grow (&obstack, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
      obstack_grow0 (&obstack, link_spec, strlen (link_spec));
      set_spec ("link", XOBFINISH (&obstack, const char *), false);
    }