unless ($define{'USE_ITHREADS'}) {
skip_symbols [qw(
PL_ptr_table
+ PL_pte_root
+ PL_pte_arenaroot
PL_op_mutex
PL_regex_pad
PL_regex_padav
+ PL_shared_hek_table
PL_sharedsv_space
PL_sharedsv_space_mutex
PL_dollarzero_mutex
Perl_re_dup
Perl_sv_dup
Perl_rvpv_dup
+ Perl_hek_dup
Perl_sys_intern_dup
Perl_ptr_table_clear
Perl_ptr_table_fetch