Winsock2.
* win32/Makefile.sub (COMMON_HEADERS): include ws2tcpip.h.
* ext/socket/addrinfo.h (addrinfo, getaddrinfo, getnameinfo,
freehostent, freeaddrinfo): undef before define because these are
macros in some versions of Windows SDK.
* win32/setup.mak: maybe commit miss.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8_7@16866 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
NI_MAXHOST only if they are not defined yet. This fixes build
such platforms as OpenBSD.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@3254 b2dd03c8-39d4-4d8f-98ff-823fe69b080e