[R] install R for Windows problem

[Erin Hodgess]

Here are all of the messages:

In file included from internet.c:858:
sock.h.27:conflicting types for 'ssize_t'
c:/mingw/include/sys/types.h:119: previous declaration of 'ssize_t'
MAKE[2]: ***[internet.o] Error 1
MAKE[1]: ***[all] Error 1
MAKE:  ***[rmodules] Error 2