OS2_SHM_BASE     23157 sqlite3/libsqlite/sqlite3.c #define OS2_SHM_BASE   (PENDING_BYTE + 0x10000)         /* first lock byte */
OS2_SHM_BASE     23159 sqlite3/libsqlite/sqlite3.c #define OS2_SHM_BASE   ((22+SQLITE_SHM_NLOCK)*4)        /* first lock byte */