ap_max_requests_per_child isn't part of the API, is it?

[Jeff Trawick]

Some level of mod_php (presumably recent) won't load with Apache 2 on 
AIX, and the reason is that the decl of that variable in mpm_common.h 
isn't formally exported (AP_DECLARE_DATA).  PHP should be using 
ap_mpm_query(), right?

See http://nagoya.apache.org/bugzilla/show_bug.cgi?id=21046