Cannot compile, get error for 1.4

[Cloud-user221]

./generic_binary_tree.c:111:12: warning: ‘btree_recursive_expmem’ defined but not used [-Wunused-function]
111 | static int btree_recursive_expmem(struct generic_binary_tree *tree, struct generic_binary_tree_node *node)
| ^~~~~~~~~~~~~~~~~~~~~~
make[2]: *** [Makefile:20: ../stats.o] Error 1
make[2]: Leaving directory '/home/pi/eggdrop-1.9.5/src/mod/stats.mod'
make[1]: *** [Makefile:60: stats.mod_so] Error 2
make[1]: Leaving directory '/home/pi/eggdrop-1.9.5/src/mod'
make: *** [Makefile:243: eggdrop] Error 2

PLEASE HELP!

[michaelortmann]

Version 1.4 is too old and doesnt support eggdrop 1.8 or newer
You could try a newer / patched version like:
https://github.com/michaelortmann/stats.mod