This macro for SSL detection was altogether wrong. Refactoring

to restore the ability to build and link against a specified
--with-ssl[c]=path, including use of pkg-config variables which
were ignored during the autoconf test phase.

Tested on hpux, aix, linux x and ppc, solaris x and sparc.

Backports: r669924



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@669925 13f79535-47bb-0310-9956-ffa450edef68