编译perl-mozldap遇到问题

zhanghuiwo

错误信息如下：
Note (probably harmless): No library found for -lssldap60
Note (probably harmless): No library found for -lprldap60
Note (probably harmless): No library found for -lldap60
Writing Makefile for Mozilla:DAP::API
我找了好久都没有找到答案，-lssldap60，-lprldap60，这几个，不知道是什么包，请高手告知，谢谢！