require '_h2ph_pre.ph';

no warnings 'redefine';

unless(defined(&_SYS_MUTEX_H_)) {
    eval 'sub _SYS_MUTEX_H_ () {1;}' unless defined(&_SYS_MUTEX_H_);
    require 'machine/mutex.ph';
    unless(defined(&mtx_init)) {
    }
}
1;
