*) add check for mod_so

*) juse use APACHE_MODULE (the custom defun only saved a single arg)
*) toss AC_SUBST(STANDARD_LIBS) line; it isn't used/needed


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@87246 13f79535-47bb-0310-9956-ffa450edef68