Error compiling gRPC 1.6.0

Submodule path 'third_party/benchmark': checked out '44c25c892a6229b20db7cd9dc05584ea865896de'
Submodule path 'third_party/boringssl': checked out 'be2ee342d3781ddb954f91f8a7e660c6f59e87e5'
Submodule path 'third_party/boringssl-with-bazel': checked out '886e7d75368e3f4fab3f4d0d3584e4abfc557755'
Submodule path 'third_party/cares/cares': checked out '7691f773af79bf75a62d1863fd0f13ebf9dc51b1'
Submodule path 'third_party/gflags': checked out '30dbc81fb5ffdc98ea9b14b1918bfe4e8779b26e'
Submodule path 'third_party/googletest': checked out 'ec44c6c1675c25b9827aacd08c02433cccde7780'
Submodule path 'third_party/protobuf': checked out '80a37e0782d2d702d52234b62dd4b9ec74fd2c95'
Submodule path 'third_party/zlib': checked out 'cacf7f1d4e3d44d871b605da3b647f07d718623f'
[MAKE]    Generating /var/local/git/grpc/libs/opt/pkgconfig/grpc.pc
[MAKE]    Generating /var/local/git/grpc/libs/opt/pkgconfig/grpc_unsecure.pc
[MAKE]    Generating cache.mk
make: Circular /var/local/git/grpc/libs/opt/libares.a <- /var/local/git/grpc/libs/opt/libz.a dependency dropped.
[C]       Compiling third_party/cares/cares/ares__close_sockets.c
In file included from third_party/cares/cares/ares_setup.h:214:0,
                 from third_party/cares/cares/ares__close_sockets.c:17:
third_party/cares/cares/setup_once.h:71:16: fatal error: io.h: No such file or directory
 #include <io.h>
                ^
compilation terminated.
winegcc: gcc failed
Makefile:2515: recipe for target '/var/local/git/grpc/objs/opt/third_party/cares/cares/ares__close_sockets.o' failed
make: *** [/var/local/git/grpc/objs/opt/third_party/cares/cares/ares__close_sockets.o] Error 2
error: build error: The command '/bin/sh -c cd /var/local/git/grpc &&     git submodule update --init &&     make &&     make install && make clean' returned a non-zero code: 2