Move some of the variables which are added to Makefile.config

further up to a place where TestCompile can take advantage of them.
This could improve some of the configuration guessing attempts
and especially module inititialization routines which are called
in an early stage of the Configure process.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@82518 13f79535-47bb-0310-9956-ffa450edef68