yuangongji b9bf7fa71d autoconf: fix getaddrinfo checking errors on mingw
`AC_CHECK_FUNCS` can not properly check `getaddrinfo` because this
function requires some special headers on mingw.
Using `AC_CHECK_DECL` can effectively solve this issue.

Same for
- getnameinfo
- getprotobynumber
- getservbyname
- inet_ntop
- inet_pton

(cherry picked from commit 6d54be2cc078351b4ce1e469bedc4a976f4e3636)
2020-06-28 21:24:21 +03:00
..