LMDB 0.9.18 Release Engineering
Fix robust mutex detection on glibc 2.10-11 (ITS#8330)
Fix page_search_root assert on FreeDB (ITS#8336)
+ Fix MDB_APPENDDUP vs. rewrite(single item) (ITS#8334)
+ Fix mdb_copy of large files on Windows
Check for utf8_to_utf16 failures (ITS#7992)
Catch strdup failure in mdb_dbi_open
Build