Tor 0.3.3.6 fails to compile under cygwin (x86_64)
From the 0.3.3.6 blog post's comments (https://blog.torproject.org/comment/275501#comment-275501):
```
I try to build latest tor 0.3.3.6 from source under "x86_64 Cygwin".
Earlier versions did compile, I'm running now "Tor version 0.3.2.9 (git-9e8b762fcecfece6)."
Compilation now Fails with the following erros:
make all-am
make[1]: Entering directory '/cygdrive/f/tor-0.3.3.6'
CC src/ext/ed25519/ref10/src_ext_ed25519_ref10_libed25519_ref10_a-fe_0.o
In file included from src/ext/ed25519/ref10/crypto_int32.h:6,
from src/ext/ed25519/ref10/fe.h:4,
from src/ext/ed25519/ref10/fe_0.c:1:
./src/common/torint.h:214:2: error: #error "Can't define ssize_t."
#error "Can't define ssize_t."
^~~~~
./src/common/torint.h:237:2: error: #error "void * is either >8 bytes or <= 2. In either case, I am confused."
#error "void * is either >8 bytes or <= 2. In either case, I am confused."
^~~~~
./src/common/torint.h:241:2: error: #error "Missing type int8_t"
#error "Missing type int8_t"
^~~~~
./src/common/torint.h:244:2: error: #error "Missing type uint8_t"
#error "Missing type uint8_t"
^~~~~
./src/common/torint.h:247:2: error: #error "Missing type int16_t"
#error "Missing type int16_t"
^~~~~
./src/common/torint.h:250:2: error: #error "Missing type uint16_t"
#error "Missing type uint16_t"
^~~~~
./src/common/torint.h:253:2: error: #error "Missing type int32_t"
#error "Missing type int32_t"
^~~~~
./src/common/torint.h:256:2: error: #error "Missing type uint32_t"
#error "Missing type uint32_t"
^~~~~
./src/common/torint.h:259:2: error: #error "Missing type int64_t"
#error "Missing type int64_t"
^~~~~
./src/common/torint.h:262:2: error: #error "Missing type uint64_t"
#error "Missing type uint64_t"
^~~~~
./src/common/torint.h:269:2: error: #error "Seems that your platform doesn't use 2's complement arithmetic. Argh."
#error "Seems that your platform doesn't use 2's complement arithmetic. Argh."
^~~~~
./src/common/torint.h:277:2: error: #error "Can't define LONG_MAX"
#error "Can't define LONG_MAX"
^~~~~
./src/common/torint.h:287:2: error: #error "Can't define INT_MAX"
#error "Can't define INT_MAX"
^~~~~
./src/common/torint.h:299:2: error: #error "Can't define UINT_MAX"
#error "Can't define UINT_MAX"
^~~~~
./src/common/torint.h:309:2: error: #error "Can't define SHORT_MAX"
#error "Can't define SHORT_MAX"
^~~~~
./src/common/torint.h:367:2: error: #error "Can't define SSIZE_MAX"
#error "Can't define SSIZE_MAX"
^~~~~
make[1]: *** [Makefile:6513: src/ext/ed25519/ref10/src_ext_ed25519_ref10_libed25519_ref10_a-fe_0.o] Error 1
make[1]: Leaving directory '/cygdrive/f/tor-0.3.3.6'
make: *** [Makefile:3409: all] Error 2
```
issue