merge revision(s) 49930: [Backport #10954]
* configure.in: check also procstat_getvmmap, which is not available on FreeBSD 9. [ruby-core:68468] [Bug #10954] * vm_dump.c (procstat_vm): use kinfo_getvmmap instead if procstat_getvmmap is not available.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_2@50315 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 49930: [Backport #10954]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_2@50315 b2dd03c8-39d4-4d8f-98ff-823fe69b080e