xDlSym           1390 ext/sqlite3/libsqlite/sqlite3.c   void (*(*xDlSym)(sqlite3_vfs*,void*, const char *zSymbol))(void);
xDlSym           16696 ext/sqlite3/libsqlite/sqlite3.c   return pVfs->xDlSym(pVfs, pHdle, zSym);
xDlSym           1183 ext/sqlite3/libsqlite/sqlite3.h   void (*(*xDlSym)(sqlite3_vfs*,void*, const char *zSymbol))(void);