编译安装HTTPD的时候出现以下情况，请问是什么情况，怎么解决

Making all in srclib

Making all in apr

Making all in apr-util

Making all in xml/expat

Making all in pcre

Making all in os

Making all in unix

Making all in server

Making all in mpm

Making all in prefork

Found newer headers. Will rebuild exports.c.

rm -f exports.c export_files

Making all in modules

Making all in aaa

Making all in filters

Making all in loggers

Making all in metadata

Making all in http

Making all in generators

Making all in mappers

Making all in support