Hi all,

The latest snapshot fails to build with the following message:

lib_mouse.c:(.text+0x59a): undefined reference to `NonEmpty'

Also, there's a warning when compiling lib_mouse.c

gcc -DHAVE_CONFIG_H -I../ncurses -I. -I../include -D_DEFAULT_SOURCE
-D_XOPEN_SOURCE=600 -DNDEBUG -O2 --param max-inline-insns-single=1200
-c ../ncurses/./base/lib_mouse.c -o ../objects/lib_mouse.o
../ncurses/./base/lib_mouse.c: In function 'initialize_mousetype':
../ncurses/./base/lib_mouse.c:719:9: warning: implicit declaration of
function 'NonEmpty' [-Wimplicit-function-declaration]
     if (NonEmpty(key_mouse)) {
         ^~~~~~~~

I'm using GCC 8.2.1. Ncurses is configure with `./configure`.

Regards,

Chih-Hsuan Yen