Fixes for macOS and Win.

deps/cares-win32.patch

-diff --git a/deps/c-ares/ares_gethostbyname.c b/deps/c-ares/ares_gethostbyname.c
-index 8187746b..fb73826b 100644
---- a/deps/c-ares/ares_gethostbyname.c
-+++ b/deps/c-ares/ares_gethostbyname.c
-@@ -346,10 +346,6 @@ static int file_lookup(const char *name, int family, struct hostent **host)
-   int status;
-   int error;
- 
--  /* Per RFC 7686, reject queries for ".onion" domain names with NXDOMAIN. */
--  if (ares__is_onion_domain(name))
--    return ARES_ENOTFOUND;
--
- #ifdef WIN32
-   char PATH_HOSTS[MAX_PATH];
-   win_platform platform;
-@@ -387,6 +383,10 @@ static int file_lookup(const char *name, int family, struct hostent **host)
-     return ARES_ENOTFOUND;
- #endif
- 
-+  /* Per RFC 7686, reject queries for ".onion" domain names with NXDOMAIN. */
-+  if (ares__is_onion_domain(name))
-+    return ARES_ENOTFOUND;
-+
-   fp = fopen(PATH_HOSTS, "r");
-   if (!fp)
-     {

deps/libuv-1.38-static-assert.patch

-diff --git a/deps/libuv/src/win/udp.c b/deps/libuv/src/win/udp.c
-index 1c4977af..958dee28 100644
---- a/deps/libuv/src/win/udp.c
-+++ b/deps/libuv/src/win/udp.c
-@@ -774,8 +774,8 @@ int uv__udp_set_source_membership6(uv_udp_t* handle,
-     mreq.gsr_interface = 0;
-   }
- 
--  STATIC_ASSERT(sizeof(mreq.gsr_group) >= sizeof(*multicast_addr));
--  STATIC_ASSERT(sizeof(mreq.gsr_source) >= sizeof(*source_addr));
-+//  STATIC_ASSERT(sizeof(mreq.gsr_group) >= sizeof(*multicast_addr));
-+//  STATIC_ASSERT(sizeof(mreq.gsr_source) >= sizeof(*source_addr));
-   memcpy(&mreq.gsr_group, multicast_addr, sizeof(*multicast_addr));
-   memcpy(&mreq.gsr_source, source_addr, sizeof(*source_addr));
- 
-@@ -846,7 +846,7 @@ int uv_udp_set_source_membership(uv_udp_t* handle,
-                                           src_addr6,
-                                           membership);
-   }
--  
-+
-   err = uv_ip4_addr(source_addr, 0, src_addr4);
-   if (err)
-     return err;

deps/libuv-1.42-py27-win.patch

+diff --git a/deps/libuv/src/win/util.c b/deps/libuv/src/win/util.c
+index 88602c7e..d6009ce3 100644
+--- a/deps/libuv/src/win/util.c
++++ b/deps/libuv/src/win/util.c
+@@ -1662,7 +1662,13 @@ int uv_os_unsetenv(const char* name) {
+   return 0;
+ }
+ 
+-
++/**
++ * gevent: disable this function for Python 2.7 on Windows.
++ *
++ * It fails to link on anything older than Windows 8/Windows Server 2012
++ * because of GetHostNameW.
++ */
++#if 0
+ int uv_os_gethostname(char* buffer, size_t* size) {
+   WCHAR buf[UV_MAXHOSTNAMESIZE];
+   size_t len;
+@@ -1694,6 +1700,7 @@ int uv_os_gethostname(char* buffer, size_t* size) {
+   *size = len;
+   return 0;
+ }
++#endif
+ 
+ 
+ static int uv__get_handle(uv_pid_t pid, int access, HANDLE* handle) {

deps/libuv/src/win/util.c

@@ -1662,7 +1662,13 @@ int uv_os_unsetenv(const char* name) {
   return 0;
 }
 
-
+/**
+ * gevent: disable this function for Python 2.7 on Windows.
+ *
+ * It fails to link on anything older than Windows 8/Windows Server 2012
+ * because of GetHostNameW.
+ */
+#if 0
 int uv_os_gethostname(char* buffer, size_t* size) {
   WCHAR buf[UV_MAXHOSTNAMESIZE];
   size_t len;
@@ -1694,6 +1700,7 @@ int uv_os_gethostname(char* buffer, size_t* size) {
   *size = len;
   return 0;
 }
+#endif
 
 
 static int uv__get_handle(uv_pid_t pid, int access, HANDLE* handle) {

src/gevent/libuv/_corecffi_build.py

@@ -151,7 +151,6 @@ else:
         _libuv_source('unix/thread.c'),
         _libuv_source('unix/tty.c'),
         _libuv_source('unix/udp.c'),
-        _libuv_source('unix/epoll.c'),
     ]
 
 
@@ -163,6 +162,7 @@ if sys.platform.startswith('linux'):
         _libuv_source('unix/procfs-exepath.c'),
         _libuv_source('unix/proctitle.c'),
         _libuv_source('unix/random-sysctl-linux.c'),
+        _libuv_source('unix/epoll.c'),
     ]
 elif sys.platform == 'darwin':
     LIBUV_SOURCES += [