attempt to fix detection of libdl for sqlite

libs/sqlite/configure.ac

@@ -634,6 +634,7 @@ else
   LIBS=""
   AC_SEARCH_LIBS(tgetent, [readline ncurses curses termcap])
   AC_CHECK_LIB([readline], [readline])
+  AC_CHECK_LIB([dl], [dlopen])
   TARGET_READLINE_LIBS="$LIBS"
 fi
 AC_SUBST(TARGET_READLINE_LIBS)