ssize_t needs help on windows
ssize_t needs help on windows

ssize_t is needed, but absent in Windows.

This patch typedefs it to an int in that case as recommended by Tobias.

tvanderbruggen/libwebsockets,tvanderbruggen/libwebsockets,davidgaleano/libwebsockets,tvanderbruggen/libwebsockets,tvanderbruggen/libwebsockets,davidgaleano/libwebsockets,tvanderbruggen/libwebsockets,davidgaleano/libwebsockets,davidgaleano/libwebsockets