thodg/libgit2

diff --git a/.travis.yml b/.travis.yml
index 68b29b1..28ec0e0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -27,7 +27,7 @@ matrix:
      compiler: gcc
  include:
    - compiler: i586-mingw32msvc-gcc
-     env: OPTIONS="-DBUILD_CLAR=OFF -DWIN32=ON -DMINGW=ON -DUSE_SSH=OFF"
+     env: OPTIONS="-DCMAKE_TOOLCHAIN_FILE=../script/toolchain-mingw32.cmake" SKIP_TESTS=1
      os: linux
    - compiler: gcc
      env: COVERITY=1
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1948fc8..6e52ef9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -13,6 +13,7 @@
 
 PROJECT(libgit2 C)
 CMAKE_MINIMUM_REQUIRED(VERSION 2.6)
+CMAKE_POLICY(SET CMP0015 NEW)
 
 # Add find modules to the path
 SET(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules/")
@@ -58,10 +59,6 @@ IF(MSVC)
 	# are linking statically
 	OPTION( STATIC_CRT		"Link the static CRT libraries"	ON  )
 
-	# By default, libgit2 is built with WinHTTP.  To use the built-in
-	# HTTP transport, invoke CMake with the "-DWINHTTP=OFF" argument.
-	OPTION( WINHTTP			"Use Win32 WinHTTP routines"	ON  )
-
 	# If you want to embed a copy of libssh2 into libgit2, pass a
 	# path to libssh2
 	OPTION( EMBED_SSH_PATH		"Path to libssh2 to embed (Windows)" OFF )
@@ -71,6 +68,12 @@ IF(MSVC)
 	ADD_DEFINITIONS(-D_CRT_NONSTDC_NO_DEPRECATE)
 ENDIF()
 
+IF(WIN32)
+	# By default, libgit2 is built with WinHTTP.  To use the built-in
+	# HTTP transport, invoke CMake with the "-DWINHTTP=OFF" argument.
+	OPTION(	WINHTTP			"Use Win32 WinHTTP routines"	ON	)
+ENDIF()
+
 # This variable will contain the libraries we need to put into
 # libgit2.pc's Requires.private. That is, what we're linking to or
 # what someone who's statically linking us needs to link to.
@@ -147,10 +150,38 @@ IF (WIN32 AND EMBED_SSH_PATH)
 	ADD_DEFINITIONS(-DGIT_SSH)
 ENDIF()
 
-IF (WIN32 AND WINHTTP AND NOT MINGW)
+IF (WIN32 AND WINHTTP)
 	ADD_DEFINITIONS(-DGIT_WINHTTP)
 	INCLUDE_DIRECTORIES(deps/http-parser)
 	FILE(GLOB SRC_HTTP deps/http-parser/*.c deps/http-parser/*.h)
+
+	# Since MinGW does not come with headers or an import library for winhttp,
+	# we have to include a private header and generate our own import library
+	IF (MINGW)
+		FIND_PROGRAM(DLLTOOL dlltool CMAKE_FIND_ROOT_PATH_BOTH)
+		IF (NOT DLLTOOL)
+			MESSAGE(FATAL_ERROR "Could not find dlltool command")
+		ENDIF ()
+
+		SET(LIBWINHTTP_PATH "${CMAKE_CURRENT_SOURCE_DIR}/deps/winhttp")
+
+		ADD_CUSTOM_COMMAND(
+			OUTPUT ${LIBWINHTTP_PATH}/libwinhttp.a
+			COMMAND ${DLLTOOL} -d winhttp.def -k -D winhttp.dll -l libwinhttp.a
+			DEPENDS ${LIBWINHTTP_PATH}/winhttp.def
+			WORKING_DIRECTORY ${LIBWINHTTP_PATH}
+		)
+
+		SET_SOURCE_FILES_PROPERTIES(
+			${CMAKE_CURRENT_SOURCE_DIR}/src/transports/winhttp.c
+			PROPERTIES OBJECT_DEPENDS ${LIBWINHTTP_PATH}/libwinhttp.a
+		)
+
+		INCLUDE_DIRECTORIES(deps/winhttp)
+		LINK_DIRECTORIES(deps/winhttp)
+	ENDIF ()
+
+	LINK_LIBRARIES(winhttp rpcrt4)
 ELSE ()
 	IF (NOT AMIGA AND USE_OPENSSL)
 		FIND_PACKAGE(OpenSSL)
diff --git a/deps/winhttp/urlmon.h b/deps/winhttp/urlmon.h
new file mode 100644
index 0000000..900e996
--- /dev/null
+++ b/deps/winhttp/urlmon.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) the libgit2 contributors. All rights reserved.
+ *
+ * This file is part of libgit2, distributed under the GNU GPL v2 with
+ * a Linking Exception. For full terms see the included COPYING file.
+ */
+
+#ifndef __CUSTOM_URLMON_H
+#define __CUSTOM_URLMON_H
+
+typedef struct IInternetSecurityManager IInternetSecurityManager;
+
+typedef struct IInternetSecurityManagerVtbl
+{
+	HRESULT(STDMETHODCALLTYPE *QueryInterface)(IInternetSecurityManager *, REFIID, void **);
+	ULONG(STDMETHODCALLTYPE *AddRef)(IInternetSecurityManager *);
+	ULONG(STDMETHODCALLTYPE *Release)(IInternetSecurityManager *);
+	LPVOID SetSecuritySite;
+	LPVOID GetSecuritySite;
+	HRESULT(STDMETHODCALLTYPE *MapUrlToZone)(IInternetSecurityManager *, LPCWSTR, DWORD *, DWORD);
+	LPVOID GetSecurityId;
+	LPVOID ProcessUrlAction;
+	LPVOID QueryCustomPolicy;
+	LPVOID SetZoneMapping;
+	LPVOID GetZoneMappings;
+} IInternetSecurityManagerVtbl;
+
+struct IInternetSecurityManager
+{
+	CONST_VTBL struct IInternetSecurityManagerVtbl *lpVtbl;
+};
+
+#define URLZONE_LOCAL_MACHINE 0
+#define URLZONE_INTRANET      1
+#define URLZONE_TRUSTED       2
+
+#endif /* __CUSTOM_URLMON_H */
diff --git a/deps/winhttp/winhttp.def b/deps/winhttp/winhttp.def
new file mode 100644
index 0000000..1b2d3f0
--- /dev/null
+++ b/deps/winhttp/winhttp.def
@@ -0,0 +1,29 @@
+LIBRARY		WINHTTP
+EXPORTS
+WinHttpAddRequestHeaders@16
+WinHttpCheckPlatform@0
+WinHttpCloseHandle@4
+WinHttpConnect@16
+WinHttpCrackUrl@16
+WinHttpCreateUrl@16
+WinHttpDetectAutoProxyConfigUrl@8
+WinHttpGetDefaultProxyConfiguration@4
+WinHttpGetIEProxyConfigForCurrentUser@4
+WinHttpGetProxyForUrl@16
+WinHttpOpen@20
+WinHttpOpenRequest@28
+WinHttpQueryAuthSchemes@16
+WinHttpQueryDataAvailable@8
+WinHttpQueryHeaders@24
+WinHttpQueryOption@16
+WinHttpReadData@16
+WinHttpReceiveResponse@8
+WinHttpSendRequest@28
+WinHttpSetCredentials@24
+WinHttpSetDefaultProxyConfiguration@4
+WinHttpSetOption@16
+WinHttpSetStatusCallback@16
+WinHttpSetTimeouts@20
+WinHttpTimeFromSystemTime@8
+WinHttpTimeToSystemTime@8
+WinHttpWriteData@16
diff --git a/deps/winhttp/winhttp.h b/deps/winhttp/winhttp.h
new file mode 100644
index 0000000..51e8265
--- /dev/null
+++ b/deps/winhttp/winhttp.h
@@ -0,0 +1,584 @@
+/*
+ * Copyright (C) 2007 Francois Gouget
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#ifndef __WINE_WINHTTP_H
+#define __WINE_WINHTTP_H
+
+#ifdef _WIN64
+#include <pshpack8.h>
+#else
+#include <pshpack4.h>
+#endif
+
+#define WINHTTPAPI
+#define BOOLAPI WINHTTPAPI BOOL WINAPI
+
+
+typedef LPVOID HINTERNET;
+typedef HINTERNET *LPHINTERNET;
+
+#define INTERNET_DEFAULT_PORT           0
+#define INTERNET_DEFAULT_HTTP_PORT      80
+#define INTERNET_DEFAULT_HTTPS_PORT     443
+typedef WORD INTERNET_PORT;
+typedef INTERNET_PORT *LPINTERNET_PORT;
+
+#define INTERNET_SCHEME_HTTP            1
+#define INTERNET_SCHEME_HTTPS           2
+typedef int INTERNET_SCHEME, *LPINTERNET_SCHEME;
+
+#define ICU_ESCAPE  0x80000000
+
+/* flags for WinHttpOpen */
+#define WINHTTP_FLAG_ASYNC                  0x10000000
+
+/* flags for WinHttpOpenRequest */
+#define WINHTTP_FLAG_ESCAPE_PERCENT         0x00000004
+#define WINHTTP_FLAG_NULL_CODEPAGE          0x00000008
+#define WINHTTP_FLAG_ESCAPE_DISABLE         0x00000040
+#define WINHTTP_FLAG_ESCAPE_DISABLE_QUERY   0x00000080
+#define WINHTTP_FLAG_BYPASS_PROXY_CACHE     0x00000100
+#define WINHTTP_FLAG_REFRESH                WINHTTP_FLAG_BYPASS_PROXY_CACHE
+#define WINHTTP_FLAG_SECURE                 0x00800000
+
+#define WINHTTP_ACCESS_TYPE_DEFAULT_PROXY   0
+#define WINHTTP_ACCESS_TYPE_NO_PROXY        1
+#define WINHTTP_ACCESS_TYPE_NAMED_PROXY     3
+
+#define WINHTTP_NO_PROXY_NAME               NULL
+#define WINHTTP_NO_PROXY_BYPASS             NULL
+
+#define WINHTTP_NO_REFERER                  NULL
+#define WINHTTP_DEFAULT_ACCEPT_TYPES        NULL
+
+#define WINHTTP_NO_ADDITIONAL_HEADERS       NULL
+#define WINHTTP_NO_REQUEST_DATA             NULL
+
+#define WINHTTP_HEADER_NAME_BY_INDEX        NULL
+#define WINHTTP_NO_OUTPUT_BUFFER            NULL
+#define WINHTTP_NO_HEADER_INDEX             NULL
+
+#define WINHTTP_ADDREQ_INDEX_MASK                    0x0000FFFF
+#define WINHTTP_ADDREQ_FLAGS_MASK                    0xFFFF0000
+#define WINHTTP_ADDREQ_FLAG_ADD_IF_NEW               0x10000000
+#define WINHTTP_ADDREQ_FLAG_ADD                      0x20000000
+#define WINHTTP_ADDREQ_FLAG_COALESCE_WITH_COMMA      0x40000000
+#define WINHTTP_ADDREQ_FLAG_COALESCE_WITH_SEMICOLON  0x01000000
+#define WINHTTP_ADDREQ_FLAG_COALESCE                 WINHTTP_ADDREQ_FLAG_COALESCE_WITH_COMMA
+#define WINHTTP_ADDREQ_FLAG_REPLACE                  0x80000000
+
+#define WINHTTP_IGNORE_REQUEST_TOTAL_LENGTH 0
+
+/* flags for WinHttp{Set/Query}Options */
+#define WINHTTP_FIRST_OPTION                         WINHTTP_OPTION_CALLBACK
+#define WINHTTP_OPTION_CALLBACK                       1
+#define WINHTTP_OPTION_RESOLVE_TIMEOUT                2
+#define WINHTTP_OPTION_CONNECT_TIMEOUT                3
+#define WINHTTP_OPTION_CONNECT_RETRIES                4
+#define WINHTTP_OPTION_SEND_TIMEOUT                   5
+#define WINHTTP_OPTION_RECEIVE_TIMEOUT                6
+#define WINHTTP_OPTION_RECEIVE_RESPONSE_TIMEOUT       7
+#define WINHTTP_OPTION_HANDLE_TYPE                    9
+#define WINHTTP_OPTION_READ_BUFFER_SIZE              12
+#define WINHTTP_OPTION_WRITE_BUFFER_SIZE             13
+#define WINHTTP_OPTION_PARENT_HANDLE                 21
+#define WINHTTP_OPTION_EXTENDED_ERROR                24
+#define WINHTTP_OPTION_SECURITY_FLAGS                31
+#define WINHTTP_OPTION_SECURITY_CERTIFICATE_STRUCT   32
+#define WINHTTP_OPTION_URL                           34
+#define WINHTTP_OPTION_SECURITY_KEY_BITNESS          36
+#define WINHTTP_OPTION_PROXY                         38
+#define WINHTTP_OPTION_USER_AGENT                    41
+#define WINHTTP_OPTION_CONTEXT_VALUE                 45
+#define WINHTTP_OPTION_CLIENT_CERT_CONTEXT           47
+#define WINHTTP_OPTION_REQUEST_PRIORITY              58
+#define WINHTTP_OPTION_HTTP_VERSION                  59
+#define WINHTTP_OPTION_DISABLE_FEATURE               63
+#define WINHTTP_OPTION_CODEPAGE                      68
+#define WINHTTP_OPTION_MAX_CONNS_PER_SERVER          73
+#define WINHTTP_OPTION_MAX_CONNS_PER_1_0_SERVER      74
+#define WINHTTP_OPTION_AUTOLOGON_POLICY              77
+#define WINHTTP_OPTION_SERVER_CERT_CONTEXT           78
+#define WINHTTP_OPTION_ENABLE_FEATURE                79
+#define WINHTTP_OPTION_WORKER_THREAD_COUNT           80
+#define WINHTTP_OPTION_PASSPORT_COBRANDING_TEXT      81
+#define WINHTTP_OPTION_PASSPORT_COBRANDING_URL       82
+#define WINHTTP_OPTION_CONFIGURE_PASSPORT_AUTH       83
+#define WINHTTP_OPTION_SECURE_PROTOCOLS              84
+#define WINHTTP_OPTION_ENABLETRACING                 85
+#define WINHTTP_OPTION_PASSPORT_SIGN_OUT             86
+#define WINHTTP_OPTION_PASSPORT_RETURN_URL           87
+#define WINHTTP_OPTION_REDIRECT_POLICY               88
+#define WINHTTP_OPTION_MAX_HTTP_AUTOMATIC_REDIRECTS  89
+#define WINHTTP_OPTION_MAX_HTTP_STATUS_CONTINUE      90
+#define WINHTTP_OPTION_MAX_RESPONSE_HEADER_SIZE      91
+#define WINHTTP_OPTION_MAX_RESPONSE_DRAIN_SIZE       92
+#define WINHTTP_OPTION_CONNECTION_INFO               93
+#define WINHTTP_OPTION_CLIENT_CERT_ISSUER_LIST       94
+#define WINHTTP_OPTION_SPN                           96
+#define WINHTTP_OPTION_GLOBAL_PROXY_CREDS            97
+#define WINHTTP_OPTION_GLOBAL_SERVER_CREDS           98
+#define WINHTTP_OPTION_UNLOAD_NOTIFY_EVENT           99
+#define WINHTTP_OPTION_REJECT_USERPWD_IN_URL         100
+#define WINHTTP_OPTION_USE_GLOBAL_SERVER_CREDENTIALS 101
+#define WINHTTP_LAST_OPTION                          WINHTTP_OPTION_USE_GLOBAL_SERVER_CREDENTIALS
+#define WINHTTP_OPTION_USERNAME                      0x1000
+#define WINHTTP_OPTION_PASSWORD                      0x1001
+#define WINHTTP_OPTION_PROXY_USERNAME                0x1002
+#define WINHTTP_OPTION_PROXY_PASSWORD                0x1003
+
+#define WINHTTP_CONNS_PER_SERVER_UNLIMITED 0xFFFFFFFF
+
+#define WINHTTP_AUTOLOGON_SECURITY_LEVEL_MEDIUM   0
+#define WINHTTP_AUTOLOGON_SECURITY_LEVEL_LOW      1
+#define WINHTTP_AUTOLOGON_SECURITY_LEVEL_HIGH     2
+#define WINHTTP_AUTOLOGON_SECURITY_LEVEL_DEFAULT  WINHTTP_AUTOLOGON_SECURITY_LEVEL_MEDIUM
+
+#define WINHTTP_OPTION_REDIRECT_POLICY_NEVER                        0
+#define WINHTTP_OPTION_REDIRECT_POLICY_DISALLOW_HTTPS_TO_HTTP       1
+#define WINHTTP_OPTION_REDIRECT_POLICY_ALWAYS                       2
+#define WINHTTP_OPTION_REDIRECT_POLICY_LAST            WINHTTP_OPTION_REDIRECT_POLICY_ALWAYS
+#define WINHTTP_OPTION_REDIRECT_POLICY_DEFAULT         WINHTTP_OPTION_REDIRECT_POLICY_DISALLOW_HTTPS_TO_HTTP
+
+#define WINHTTP_DISABLE_PASSPORT_AUTH    0x00000000
+#define WINHTTP_ENABLE_PASSPORT_AUTH     0x10000000
+#define WINHTTP_DISABLE_PASSPORT_KEYRING 0x20000000
+#define WINHTTP_ENABLE_PASSPORT_KEYRING  0x40000000
+
+#define WINHTTP_DISABLE_COOKIES                   0x00000001
+#define WINHTTP_DISABLE_REDIRECTS                 0x00000002
+#define WINHTTP_DISABLE_AUTHENTICATION            0x00000004
+#define WINHTTP_DISABLE_KEEP_ALIVE                0x00000008
+#define WINHTTP_ENABLE_SSL_REVOCATION             0x00000001
+#define WINHTTP_ENABLE_SSL_REVERT_IMPERSONATION   0x00000002
+#define WINHTTP_DISABLE_SPN_SERVER_PORT           0x00000000
+#define WINHTTP_ENABLE_SPN_SERVER_PORT            0x00000001
+#define WINHTTP_OPTION_SPN_MASK                   WINHTTP_ENABLE_SPN_SERVER_PORT
+
+/* Options for WinHttpOpenRequest */
+#define WINHTTP_NO_REFERER             NULL
+#define WINHTTP_DEFAULT_ACCEPT_TYPES   NULL
+
+/* Options for WinHttpSendRequest */
+#define WINHTTP_NO_ADDITIONAL_HEADERS   NULL
+#define WINHTTP_NO_REQUEST_DATA         NULL
+
+/* WinHTTP error codes */
+#define WINHTTP_ERROR_BASE                                  12000
+#define ERROR_WINHTTP_OUT_OF_HANDLES                        (WINHTTP_ERROR_BASE + 1)
+#define ERROR_WINHTTP_TIMEOUT                               (WINHTTP_ERROR_BASE + 2)
+#define ERROR_WINHTTP_INTERNAL_ERROR                        (WINHTTP_ERROR_BASE + 4)
+#define ERROR_WINHTTP_INVALID_URL                           (WINHTTP_ERROR_BASE + 5)
+#define ERROR_WINHTTP_UNRECOGNIZED_SCHEME                   (WINHTTP_ERROR_BASE + 6)
+#define ERROR_WINHTTP_NAME_NOT_RESOLVED                     (WINHTTP_ERROR_BASE + 7)
+#define ERROR_WINHTTP_INVALID_OPTION                        (WINHTTP_ERROR_BASE + 9)
+#define ERROR_WINHTTP_OPTION_NOT_SETTABLE                   (WINHTTP_ERROR_BASE + 11)
+#define ERROR_WINHTTP_SHUTDOWN                              (WINHTTP_ERROR_BASE + 12)
+#define ERROR_WINHTTP_LOGIN_FAILURE                         (WINHTTP_ERROR_BASE + 15)
+#define ERROR_WINHTTP_OPERATION_CANCELLED                   (WINHTTP_ERROR_BASE + 17)
+#define ERROR_WINHTTP_INCORRECT_HANDLE_TYPE                 (WINHTTP_ERROR_BASE + 18)
+#define ERROR_WINHTTP_INCORRECT_HANDLE_STATE                (WINHTTP_ERROR_BASE + 19)
+#define ERROR_WINHTTP_CANNOT_CONNECT                        (WINHTTP_ERROR_BASE + 29)
+#define ERROR_WINHTTP_CONNECTION_ERROR                      (WINHTTP_ERROR_BASE + 30)
+#define ERROR_WINHTTP_RESEND_REQUEST                        (WINHTTP_ERROR_BASE + 32)
+#define ERROR_WINHTTP_SECURE_CERT_DATE_INVALID              (WINHTTP_ERROR_BASE + 37)
+#define ERROR_WINHTTP_SECURE_CERT_CN_INVALID                (WINHTTP_ERROR_BASE + 38)
+#define ERROR_WINHTTP_CLIENT_AUTH_CERT_NEEDED               (WINHTTP_ERROR_BASE + 44)
+#define ERROR_WINHTTP_SECURE_INVALID_CA                     (WINHTTP_ERROR_BASE + 45)
+#define ERROR_WINHTTP_SECURE_CERT_REV_FAILED                (WINHTTP_ERROR_BASE + 57)
+#define ERROR_WINHTTP_CANNOT_CALL_BEFORE_OPEN               (WINHTTP_ERROR_BASE + 100)
+#define ERROR_WINHTTP_CANNOT_CALL_BEFORE_SEND               (WINHTTP_ERROR_BASE + 101)
+#define ERROR_WINHTTP_CANNOT_CALL_AFTER_SEND                (WINHTTP_ERROR_BASE + 102)
+#define ERROR_WINHTTP_CANNOT_CALL_AFTER_OPEN                (WINHTTP_ERROR_BASE + 103)
+#define ERROR_WINHTTP_HEADER_NOT_FOUND                      (WINHTTP_ERROR_BASE + 150)
+#define ERROR_WINHTTP_INVALID_SERVER_RESPONSE               (WINHTTP_ERROR_BASE + 152)
+#define ERROR_WINHTTP_INVALID_HEADER                        (WINHTTP_ERROR_BASE + 153)
+#define ERROR_WINHTTP_INVALID_QUERY_REQUEST                 (WINHTTP_ERROR_BASE + 154)
+#define ERROR_WINHTTP_HEADER_ALREADY_EXISTS                 (WINHTTP_ERROR_BASE + 155)
+#define ERROR_WINHTTP_REDIRECT_FAILED                       (WINHTTP_ERROR_BASE + 156)
+#define ERROR_WINHTTP_SECURE_CHANNEL_ERROR                  (WINHTTP_ERROR_BASE + 157)
+#define ERROR_WINHTTP_BAD_AUTO_PROXY_SCRIPT                 (WINHTTP_ERROR_BASE + 166)
+#define ERROR_WINHTTP_UNABLE_TO_DOWNLOAD_SCRIPT             (WINHTTP_ERROR_BASE + 167)
+#define ERROR_WINHTTP_SECURE_INVALID_CERT                   (WINHTTP_ERROR_BASE + 169)
+#define ERROR_WINHTTP_SECURE_CERT_REVOKED                   (WINHTTP_ERROR_BASE + 170)
+#define ERROR_WINHTTP_NOT_INITIALIZED                       (WINHTTP_ERROR_BASE + 172)
+#define ERROR_WINHTTP_SECURE_FAILURE                        (WINHTTP_ERROR_BASE + 175)
+#define ERROR_WINHTTP_AUTO_PROXY_SERVICE_ERROR              (WINHTTP_ERROR_BASE + 178)
+#define ERROR_WINHTTP_SECURE_CERT_WRONG_USAGE               (WINHTTP_ERROR_BASE + 179)
+#define ERROR_WINHTTP_AUTODETECTION_FAILED                  (WINHTTP_ERROR_BASE + 180)
+#define ERROR_WINHTTP_HEADER_COUNT_EXCEEDED                 (WINHTTP_ERROR_BASE + 181)
+#define ERROR_WINHTTP_HEADER_SIZE_OVERFLOW                  (WINHTTP_ERROR_BASE + 182)
+#define ERROR_WINHTTP_CHUNKED_ENCODING_HEADER_SIZE_OVERFLOW (WINHTTP_ERROR_BASE + 183)
+#define ERROR_WINHTTP_RESPONSE_DRAIN_OVERFLOW               (WINHTTP_ERROR_BASE + 184)
+#define ERROR_WINHTTP_CLIENT_CERT_NO_PRIVATE_KEY            (WINHTTP_ERROR_BASE + 185)
+#define ERROR_WINHTTP_CLIENT_CERT_NO_ACCESS_PRIVATE_KEY     (WINHTTP_ERROR_BASE + 186)
+#define WINHTTP_ERROR_LAST                                  (WINHTTP_ERROR_BASE + 186)
+
+/* WinHttp status codes */
+#define HTTP_STATUS_CONTINUE            100
+#define HTTP_STATUS_SWITCH_PROTOCOLS    101
+#define HTTP_STATUS_OK                  200
+#define HTTP_STATUS_CREATED             201
+#define HTTP_STATUS_ACCEPTED            202
+#define HTTP_STATUS_PARTIAL             203
+#define HTTP_STATUS_NO_CONTENT          204
+#define HTTP_STATUS_RESET_CONTENT       205
+#define HTTP_STATUS_PARTIAL_CONTENT     206
+#define HTTP_STATUS_WEBDAV_MULTI_STATUS 207
+#define HTTP_STATUS_AMBIGUOUS           300
+#define HTTP_STATUS_MOVED               301
+#define HTTP_STATUS_REDIRECT            302
+#define HTTP_STATUS_REDIRECT_METHOD     303
+#define HTTP_STATUS_NOT_MODIFIED        304
+#define HTTP_STATUS_USE_PROXY           305
+#define HTTP_STATUS_REDIRECT_KEEP_VERB  307
+#define HTTP_STATUS_BAD_REQUEST         400
+#define HTTP_STATUS_DENIED              401
+#define HTTP_STATUS_PAYMENT_REQ         402
+#define HTTP_STATUS_FORBIDDEN           403
+#define HTTP_STATUS_NOT_FOUND           404
+#define HTTP_STATUS_BAD_METHOD          405
+#define HTTP_STATUS_NONE_ACCEPTABLE     406
+#define HTTP_STATUS_PROXY_AUTH_REQ      407
+#define HTTP_STATUS_REQUEST_TIMEOUT     408
+#define HTTP_STATUS_CONFLICT            409
+#define HTTP_STATUS_GONE                410
+#define HTTP_STATUS_LENGTH_REQUIRED     411
+#define HTTP_STATUS_PRECOND_FAILED      412
+#define HTTP_STATUS_REQUEST_TOO_LARGE   413
+#define HTTP_STATUS_URI_TOO_LONG        414
+#define HTTP_STATUS_UNSUPPORTED_MEDIA   415
+#define HTTP_STATUS_RETRY_WITH          449
+#define HTTP_STATUS_SERVER_ERROR        500
+#define HTTP_STATUS_NOT_SUPPORTED       501
+#define HTTP_STATUS_BAD_GATEWAY         502
+#define HTTP_STATUS_SERVICE_UNAVAIL     503
+#define HTTP_STATUS_GATEWAY_TIMEOUT     504
+#define HTTP_STATUS_VERSION_NOT_SUP     505
+#define HTTP_STATUS_FIRST               HTTP_STATUS_CONTINUE
+#define HTTP_STATUS_LAST                HTTP_STATUS_VERSION_NOT_SUP
+
+#define SECURITY_FLAG_IGNORE_UNKNOWN_CA         0x00000100
+#define SECURITY_FLAG_IGNORE_CERT_DATE_INVALID  0x00002000
+#define SECURITY_FLAG_IGNORE_CERT_CN_INVALID    0x00001000
+#define SECURITY_FLAG_IGNORE_CERT_WRONG_USAGE   0x00000200
+#define SECURITY_FLAG_SECURE                    0x00000001
+#define SECURITY_FLAG_STRENGTH_WEAK             0x10000000
+#define SECURITY_FLAG_STRENGTH_MEDIUM           0x40000000
+#define SECURITY_FLAG_STRENGTH_STRONG           0x20000000
+
+#define ICU_NO_ENCODE          0x20000000
+#define ICU_DECODE             0x10000000
+#define ICU_NO_META            0x08000000
+#define ICU_ENCODE_SPACES_ONLY 0x04000000
+#define ICU_BROWSER_MODE       0x02000000
+#define ICU_ENCODE_PERCENT     0x00001000
+
+/* Query flags */
+#define WINHTTP_QUERY_MIME_VERSION                 0
+#define WINHTTP_QUERY_CONTENT_TYPE                 1
+#define WINHTTP_QUERY_CONTENT_TRANSFER_ENCODING    2
+#define WINHTTP_QUERY_CONTENT_ID                   3
+#define WINHTTP_QUERY_CONTENT_DESCRIPTION          4
+#define WINHTTP_QUERY_CONTENT_LENGTH               5
+#define WINHTTP_QUERY_CONTENT_LANGUAGE             6
+#define WINHTTP_QUERY_ALLOW                        7
+#define WINHTTP_QUERY_PUBLIC                       8
+#define WINHTTP_QUERY_DATE                         9
+#define WINHTTP_QUERY_EXPIRES                      10
+#define WINHTTP_QUERY_LAST_MODIFIED                11
+#define WINHTTP_QUERY_MESSAGE_ID                   12
+#define WINHTTP_QUERY_URI                          13
+#define WINHTTP_QUERY_DERIVED_FROM                 14
+#define WINHTTP_QUERY_COST                         15
+#define WINHTTP_QUERY_LINK                         16
+#define WINHTTP_QUERY_PRAGMA                       17
+#define WINHTTP_QUERY_VERSION                      18
+#define WINHTTP_QUERY_STATUS_CODE                  19
+#define WINHTTP_QUERY_STATUS_TEXT                  20
+#define WINHTTP_QUERY_RAW_HEADERS                  21
+#define WINHTTP_QUERY_RAW_HEADERS_CRLF             22
+#define WINHTTP_QUERY_CONNECTION                   23
+#define WINHTTP_QUERY_ACCEPT                       24
+#define WINHTTP_QUERY_ACCEPT_CHARSET               25
+#define WINHTTP_QUERY_ACCEPT_ENCODING              26
+#define WINHTTP_QUERY_ACCEPT_LANGUAGE              27
+#define WINHTTP_QUERY_AUTHORIZATION                28
+#define WINHTTP_QUERY_CONTENT_ENCODING             29
+#define WINHTTP_QUERY_FORWARDED                    30
+#define WINHTTP_QUERY_FROM                         31
+#define WINHTTP_QUERY_IF_MODIFIED_SINCE            32
+#define WINHTTP_QUERY_LOCATION                     33
+#define WINHTTP_QUERY_ORIG_URI                     34
+#define WINHTTP_QUERY_REFERER                      35
+#define WINHTTP_QUERY_RETRY_AFTER                  36
+#define WINHTTP_QUERY_SERVER                       37
+#define WINHTTP_QUERY_TITLE                        38
+#define WINHTTP_QUERY_USER_AGENT                   39
+#define WINHTTP_QUERY_WWW_AUTHENTICATE             40
+#define WINHTTP_QUERY_PROXY_AUTHENTICATE           41
+#define WINHTTP_QUERY_ACCEPT_RANGES                42
+#define WINHTTP_QUERY_SET_COOKIE                   43
+#define WINHTTP_QUERY_COOKIE                       44
+#define WINHTTP_QUERY_REQUEST_METHOD               45
+#define WINHTTP_QUERY_REFRESH                      46
+#define WINHTTP_QUERY_CONTENT_DISPOSITION          47
+#define WINHTTP_QUERY_AGE                          48
+#define WINHTTP_QUERY_CACHE_CONTROL                49
+#define WINHTTP_QUERY_CONTENT_BASE                 50
+#define WINHTTP_QUERY_CONTENT_LOCATION             51
+#define WINHTTP_QUERY_CONTENT_MD5                  52
+#define WINHTTP_QUERY_CONTENT_RANGE                53
+#define WINHTTP_QUERY_ETAG                         54
+#define WINHTTP_QUERY_HOST                         55
+#define WINHTTP_QUERY_IF_MATCH                     56
+#define WINHTTP_QUERY_IF_NONE_MATCH                57
+#define WINHTTP_QUERY_IF_RANGE                     58
+#define WINHTTP_QUERY_IF_UNMODIFIED_SINCE          59
+#define WINHTTP_QUERY_MAX_FORWARDS                 60
+#define WINHTTP_QUERY_PROXY_AUTHORIZATION          61
+#define WINHTTP_QUERY_RANGE                        62
+#define WINHTTP_QUERY_TRANSFER_ENCODING            63
+#define WINHTTP_QUERY_UPGRADE                      64
+#define WINHTTP_QUERY_VARY                         65
+#define WINHTTP_QUERY_VIA                          66
+#define WINHTTP_QUERY_WARNING                      67
+#define WINHTTP_QUERY_EXPECT                       68
+#define WINHTTP_QUERY_PROXY_CONNECTION             69
+#define WINHTTP_QUERY_UNLESS_MODIFIED_SINCE        70
+#define WINHTTP_QUERY_PROXY_SUPPORT                75
+#define WINHTTP_QUERY_AUTHENTICATION_INFO          76
+#define WINHTTP_QUERY_PASSPORT_URLS                77
+#define WINHTTP_QUERY_PASSPORT_CONFIG              78
+#define WINHTTP_QUERY_MAX                          78
+#define WINHTTP_QUERY_CUSTOM                       65535
+#define WINHTTP_QUERY_FLAG_REQUEST_HEADERS         0x80000000
+#define WINHTTP_QUERY_FLAG_SYSTEMTIME              0x40000000
+#define WINHTTP_QUERY_FLAG_NUMBER                  0x20000000
+
+/* Callback options */
+#define WINHTTP_CALLBACK_STATUS_RESOLVING_NAME          0x00000001
+#define WINHTTP_CALLBACK_STATUS_NAME_RESOLVED           0x00000002
+#define WINHTTP_CALLBACK_STATUS_CONNECTING_TO_SERVER    0x00000004
+#define WINHTTP_CALLBACK_STATUS_CONNECTED_TO_SERVER     0x00000008
+#define WINHTTP_CALLBACK_STATUS_SENDING_REQUEST         0x00000010
+#define WINHTTP_CALLBACK_STATUS_REQUEST_SENT            0x00000020
+#define WINHTTP_CALLBACK_STATUS_RECEIVING_RESPONSE      0x00000040
+#define WINHTTP_CALLBACK_STATUS_RESPONSE_RECEIVED       0x00000080
+#define WINHTTP_CALLBACK_STATUS_CLOSING_CONNECTION      0x00000100
+#define WINHTTP_CALLBACK_STATUS_CONNECTION_CLOSED       0x00000200
+#define WINHTTP_CALLBACK_STATUS_HANDLE_CREATED          0x00000400
+#define WINHTTP_CALLBACK_STATUS_HANDLE_CLOSING          0x00000800
+#define WINHTTP_CALLBACK_STATUS_DETECTING_PROXY         0x00001000
+#define WINHTTP_CALLBACK_STATUS_REDIRECT                0x00004000
+#define WINHTTP_CALLBACK_STATUS_INTERMEDIATE_RESPONSE   0x00008000
+#define WINHTTP_CALLBACK_STATUS_SECURE_FAILURE          0x00010000
+#define WINHTTP_CALLBACK_STATUS_HEADERS_AVAILABLE       0x00020000
+#define WINHTTP_CALLBACK_STATUS_DATA_AVAILABLE          0x00040000
+#define WINHTTP_CALLBACK_STATUS_READ_COMPLETE           0x00080000
+#define WINHTTP_CALLBACK_STATUS_WRITE_COMPLETE          0x00100000
+#define WINHTTP_CALLBACK_STATUS_REQUEST_ERROR           0x00200000
+#define WINHTTP_CALLBACK_STATUS_SENDREQUEST_COMPLETE    0x00400000
+#define WINHTTP_CALLBACK_FLAG_RESOLVE_NAME              (WINHTTP_CALLBACK_STATUS_RESOLVING_NAME | WINHTTP_CALLBACK_STATUS_NAME_RESOLVED)
+#define WINHTTP_CALLBACK_FLAG_CONNECT_TO_SERVER         (WINHTTP_CALLBACK_STATUS_CONNECTING_TO_SERVER | WINHTTP_CALLBACK_STATUS_CONNECTED_TO_SERVER)
+#define WINHTTP_CALLBACK_FLAG_SEND_REQUEST              (WINHTTP_CALLBACK_STATUS_SENDING_REQUEST | WINHTTP_CALLBACK_STATUS_REQUEST_SENT)
+#define WINHTTP_CALLBACK_FLAG_RECEIVE_RESPONSE          (WINHTTP_CALLBACK_STATUS_RECEIVING_RESPONSE | WINHTTP_CALLBACK_STATUS_RESPONSE_RECEIVED)
+#define WINHTTP_CALLBACK_FLAG_CLOSE_CONNECTION          (WINHTTP_CALLBACK_STATUS_CLOSING_CONNECTION | WINHTTP_CALLBACK_STATUS_CONNECTION_CLOSED)
+#define WINHTTP_CALLBACK_FLAG_HANDLES                   (WINHTTP_CALLBACK_STATUS_HANDLE_CREATED | WINHTTP_CALLBACK_STATUS_HANDLE_CLOSING)
+#define WINHTTP_CALLBACK_FLAG_DETECTING_PROXY           WINHTTP_CALLBACK_STATUS_DETECTING_PROXY
+#define WINHTTP_CALLBACK_FLAG_REDIRECT                  WINHTTP_CALLBACK_STATUS_REDIRECT
+#define WINHTTP_CALLBACK_FLAG_INTERMEDIATE_RESPONSE     WINHTTP_CALLBACK_STATUS_INTERMEDIATE_RESPONSE
+#define WINHTTP_CALLBACK_FLAG_SECURE_FAILURE            WINHTTP_CALLBACK_STATUS_SECURE_FAILURE
+#define WINHTTP_CALLBACK_FLAG_SENDREQUEST_COMPLETE      WINHTTP_CALLBACK_STATUS_SENDREQUEST_COMPLETE
+#define WINHTTP_CALLBACK_FLAG_HEADERS_AVAILABLE         WINHTTP_CALLBACK_STATUS_HEADERS_AVAILABLE
+#define WINHTTP_CALLBACK_FLAG_DATA_AVAILABLE            WINHTTP_CALLBACK_STATUS_DATA_AVAILABLE
+#define WINHTTP_CALLBACK_FLAG_READ_COMPLETE             WINHTTP_CALLBACK_STATUS_READ_COMPLETE
+#define WINHTTP_CALLBACK_FLAG_WRITE_COMPLETE            WINHTTP_CALLBACK_STATUS_WRITE_COMPLETE
+#define WINHTTP_CALLBACK_FLAG_REQUEST_ERROR             WINHTTP_CALLBACK_STATUS_REQUEST_ERROR
+#define WINHTTP_CALLBACK_FLAG_ALL_COMPLETIONS           (WINHTTP_CALLBACK_STATUS_SENDREQUEST_COMPLETE | WINHTTP_CALLBACK_STATUS_HEADERS_AVAILABLE \
+                                                        | WINHTTP_CALLBACK_STATUS_DATA_AVAILABLE | WINHTTP_CALLBACK_STATUS_READ_COMPLETE          \
+                                                        | WINHTTP_CALLBACK_STATUS_WRITE_COMPLETE | WINHTTP_CALLBACK_STATUS_REQUEST_ERROR)
+#define WINHTTP_CALLBACK_FLAG_ALL_NOTIFICATIONS         0xffffffff
+#define WINHTTP_INVALID_STATUS_CALLBACK                 ((WINHTTP_STATUS_CALLBACK)(-1))
+
+#define API_RECEIVE_RESPONSE          (1)
+#define API_QUERY_DATA_AVAILABLE      (2)
+#define API_READ_DATA                 (3)
+#define API_WRITE_DATA                (4)
+#define API_SEND_REQUEST              (5)
+
+#define WINHTTP_HANDLE_TYPE_SESSION                  1
+#define WINHTTP_HANDLE_TYPE_CONNECT                  2
+#define WINHTTP_HANDLE_TYPE_REQUEST                  3
+
+#define WINHTTP_CALLBACK_STATUS_FLAG_CERT_REV_FAILED         0x00000001
+#define WINHTTP_CALLBACK_STATUS_FLAG_INVALID_CERT            0x00000002
+#define WINHTTP_CALLBACK_STATUS_FLAG_CERT_REVOKED            0x00000004
+#define WINHTTP_CALLBACK_STATUS_FLAG_INVALID_CA              0x00000008
+#define WINHTTP_CALLBACK_STATUS_FLAG_CERT_CN_INVALID         0x00000010
+#define WINHTTP_CALLBACK_STATUS_FLAG_CERT_DATE_INVALID       0x00000020
+#define WINHTTP_CALLBACK_STATUS_FLAG_CERT_WRONG_USAGE        0x00000040
+#define WINHTTP_CALLBACK_STATUS_FLAG_SECURITY_CHANNEL_ERROR  0x80000000
+
+#define WINHTTP_FLAG_SECURE_PROTOCOL_SSL2  0x00000008
+#define WINHTTP_FLAG_SECURE_PROTOCOL_SSL3  0x00000020
+#define WINHTTP_FLAG_SECURE_PROTOCOL_TLS1  0x00000080
+#define WINHTTP_FLAG_SECURE_PROTOCOL_ALL   (WINHTTP_FLAG_SECURE_PROTOCOL_SSL2 | WINHTTP_FLAG_SECURE_PROTOCOL_SSL3 | WINHTTP_FLAG_SECURE_PROTOCOL_TLS1)
+
+#define WINHTTP_AUTH_SCHEME_BASIC      0x00000001
+#define WINHTTP_AUTH_SCHEME_NTLM       0x00000002
+#define WINHTTP_AUTH_SCHEME_PASSPORT   0x00000004
+#define WINHTTP_AUTH_SCHEME_DIGEST     0x00000008
+#define WINHTTP_AUTH_SCHEME_NEGOTIATE  0x00000010
+
+#define WINHTTP_AUTH_TARGET_SERVER     0x00000000
+#define WINHTTP_AUTH_TARGET_PROXY      0x00000001
+
+#define WINHTTP_TIME_FORMAT_BUFSIZE    62
+
+typedef struct
+{
+    DWORD   dwStructSize;
+    LPWSTR  lpszScheme;
+    DWORD   dwSchemeLength;
+    INTERNET_SCHEME nScheme;
+    LPWSTR  lpszHostName;
+    DWORD   dwHostNameLength;
+    INTERNET_PORT nPort;
+    LPWSTR  lpszUserName;
+    DWORD   dwUserNameLength;
+    LPWSTR  lpszPassword;
+    DWORD   dwPasswordLength;
+    LPWSTR  lpszUrlPath;
+    DWORD   dwUrlPathLength;
+    LPWSTR  lpszExtraInfo;
+    DWORD   dwExtraInfoLength;
+} URL_COMPONENTS, *LPURL_COMPONENTS;
+typedef URL_COMPONENTS URL_COMPONENTSW;
+typedef LPURL_COMPONENTS LPURL_COMPONENTSW;
+
+typedef struct
+{
+    DWORD_PTR dwResult;
+    DWORD dwError;
+} WINHTTP_ASYNC_RESULT, *LPWINHTTP_ASYNC_RESULT;
+
+typedef struct
+{
+    FILETIME ftExpiry;
+    FILETIME ftStart;
+    LPWSTR lpszSubjectInfo;
+    LPWSTR lpszIssuerInfo;
+    LPWSTR lpszProtocolName;
+    LPWSTR lpszSignatureAlgName;
+    LPWSTR lpszEncryptionAlgName;
+    DWORD dwKeySize;
+} WINHTTP_CERTIFICATE_INFO;
+
+typedef struct
+{
+    DWORD dwAccessType;
+    LPWSTR lpszProxy;
+    LPWSTR lpszProxyBypass;
+} WINHTTP_PROXY_INFO, *LPWINHTTP_PROXY_INFO;
+typedef WINHTTP_PROXY_INFO WINHTTP_PROXY_INFOW;
+typedef LPWINHTTP_PROXY_INFO LPWINHTTP_PROXY_INFOW;
+
+typedef struct
+{
+    BOOL   fAutoDetect;
+    LPWSTR lpszAutoConfigUrl;
+    LPWSTR lpszProxy;
+    LPWSTR lpszProxyBypass;
+} WINHTTP_CURRENT_USER_IE_PROXY_CONFIG;
+
+typedef VOID (CALLBACK *WINHTTP_STATUS_CALLBACK)(HINTERNET,DWORD_PTR,DWORD,LPVOID,DWORD);
+
+#define WINHTTP_AUTO_DETECT_TYPE_DHCP   0x00000001
+#define WINHTTP_AUTO_DETECT_TYPE_DNS_A  0x00000002
+
+#define WINHTTP_AUTOPROXY_AUTO_DETECT           0x00000001
+#define WINHTTP_AUTOPROXY_CONFIG_URL            0x00000002
+#define WINHTTP_AUTOPROXY_RUN_INPROCESS         0x00010000
+#define WINHTTP_AUTOPROXY_RUN_OUTPROCESS_ONLY   0x00020000
+
+typedef struct
+{
+    DWORD dwFlags;
+    DWORD dwAutoDetectFlags;
+    LPCWSTR lpszAutoConfigUrl;
+    LPVOID lpvReserved;
+    DWORD dwReserved;
+    BOOL fAutoLogonIfChallenged;
+} WINHTTP_AUTOPROXY_OPTIONS;
+
+typedef struct
+{
+    DWORD dwMajorVersion;
+    DWORD dwMinorVersion;
+} HTTP_VERSION_INFO, *LPHTTP_VERSION_INFO;
+
+#ifdef _WS2DEF_
+typedef struct
+{
+    DWORD cbSize;
+    SOCKADDR_STORAGE LocalAddress;
+    SOCKADDR_STORAGE RemoteAddress;
+} WINHTTP_CONNECTION_INFO;
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+BOOL        WINAPI WinHttpAddRequestHeaders(HINTERNET,LPCWSTR,DWORD,DWORD);
+BOOL        WINAPI WinHttpDetectAutoProxyConfigUrl(DWORD,LPWSTR*);
+BOOL        WINAPI WinHttpCheckPlatform(void);
+BOOL        WINAPI WinHttpCloseHandle(HINTERNET);
+HINTERNET   WINAPI WinHttpConnect(HINTERNET,LPCWSTR,INTERNET_PORT,DWORD);
+BOOL        WINAPI WinHttpCrackUrl(LPCWSTR,DWORD,DWORD,LPURL_COMPONENTS);
+BOOL        WINAPI WinHttpCreateUrl(LPURL_COMPONENTS,DWORD,LPWSTR,LPDWORD);
+BOOL        WINAPI WinHttpGetDefaultProxyConfiguration(WINHTTP_PROXY_INFO*);
+BOOL        WINAPI WinHttpGetIEProxyConfigForCurrentUser(WINHTTP_CURRENT_USER_IE_PROXY_CONFIG*);
+BOOL        WINAPI WinHttpGetProxyForUrl(HINTERNET,LPCWSTR,WINHTTP_AUTOPROXY_OPTIONS*,WINHTTP_PROXY_INFO*);
+HINTERNET   WINAPI WinHttpOpen(LPCWSTR,DWORD,LPCWSTR,LPCWSTR,DWORD);
+HINTERNET   WINAPI WinHttpOpenRequest(HINTERNET,LPCWSTR,LPCWSTR,LPCWSTR,LPCWSTR,LPCWSTR*,DWORD);
+BOOL        WINAPI WinHttpQueryAuthParams(HINTERNET,DWORD,LPVOID*);
+BOOL        WINAPI WinHttpQueryAuthSchemes(HINTERNET,LPDWORD,LPDWORD,LPDWORD);
+BOOL        WINAPI WinHttpQueryDataAvailable(HINTERNET,LPDWORD);
+BOOL        WINAPI WinHttpQueryHeaders(HINTERNET,DWORD,LPCWSTR,LPVOID,LPDWORD,LPDWORD);
+BOOL        WINAPI WinHttpQueryOption(HINTERNET,DWORD,LPVOID,LPDWORD);
+BOOL        WINAPI WinHttpReadData(HINTERNET,LPVOID,DWORD,LPDWORD);
+BOOL        WINAPI WinHttpReceiveResponse(HINTERNET,LPVOID);
+BOOL        WINAPI WinHttpSendRequest(HINTERNET,LPCWSTR,DWORD,LPVOID,DWORD,DWORD,DWORD_PTR);
+BOOL        WINAPI WinHttpSetDefaultProxyConfiguration(WINHTTP_PROXY_INFO*);
+BOOL        WINAPI WinHttpSetCredentials(HINTERNET,DWORD,DWORD,LPCWSTR,LPCWSTR,LPVOID);
+BOOL        WINAPI WinHttpSetOption(HINTERNET,DWORD,LPVOID,DWORD);
+WINHTTP_STATUS_CALLBACK WINAPI WinHttpSetStatusCallback(HINTERNET,WINHTTP_STATUS_CALLBACK,DWORD,DWORD_PTR);
+BOOL        WINAPI WinHttpSetTimeouts(HINTERNET,int,int,int,int);
+BOOL        WINAPI WinHttpTimeFromSystemTime(const SYSTEMTIME *,LPWSTR);
+BOOL        WINAPI WinHttpTimeToSystemTime(LPCWSTR,SYSTEMTIME*);
+BOOL        WINAPI WinHttpWriteData(HINTERNET,LPCVOID,DWORD,LPDWORD);
+
+#ifdef __cplusplus
+}
+#endif
+
+#include <poppack.h>
+
+#endif  /* __WINE_WINHTTP_H */
diff --git a/script/cibuild.sh b/script/cibuild.sh
index 8983dcc..bdc3529 100755
--- a/script/cibuild.sh
+++ b/script/cibuild.sh
@@ -6,17 +6,25 @@ then
 	exit $?;
 fi
 
+mkdir _build
+cd _build
+# shellcheck disable=SC2086
+cmake .. -DCMAKE_INSTALL_PREFIX=../_install $OPTIONS || exit $?
+make -j2 install || exit $?
+
+# If this platform doesn't support test execution, bail out now
+if [ -n "$SKIP_TESTS" ];
+then
+	exit $?;
+fi
+
 # Create a test repo which we can use for the online::push tests
 mkdir "$HOME"/_temp
 git init --bare "$HOME"/_temp/test.git
 git daemon --listen=localhost --export-all --enable=receive-pack --base-path="$HOME"/_temp "$HOME"/_temp 2>/dev/null &
 export GITTEST_REMOTE_URL="git://localhost/test.git"
 
-mkdir _build
-cd _build
-# shellcheck disable=SC2086
-cmake .. -DCMAKE_INSTALL_PREFIX=../_install $OPTIONS || exit $?
-make -j2 install || exit $?
+# Run the test suite
 ctest -V . || exit $?
 
 # Now that we've tested the raw git protocol, let's set up ssh to we
diff --git a/script/toolchain-mingw32.cmake b/script/toolchain-mingw32.cmake
new file mode 100644
index 0000000..3ccdec2
--- /dev/null
+++ b/script/toolchain-mingw32.cmake
@@ -0,0 +1,11 @@
+# CMake toolchain file for Win32 cross-compile
+SET(CMAKE_SYSTEM_NAME Windows)
+
+SET(CMAKE_C_COMPILER i586-mingw32msvc-gcc)
+SET(CMAKE_RC_COMPILER i586-mingw32msvc-windres)
+
+SET(CMAKE_FIND_ROOT_PATH /usr/i586-mingw32msvc)
+
+SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+SET(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+SET(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
diff --git a/src/transports/winhttp.c b/src/transports/winhttp.c
index 278ef22..1d05379 100644
--- a/src/transports/winhttp.c
+++ b/src/transports/winhttp.c
@@ -19,17 +19,9 @@
 #include <wincrypt.h>
 #pragma comment(lib, "crypt32")
 #include <winhttp.h>
-#pragma comment(lib, "winhttp")
-
-#include <strsafe.h>
-
-/* For IInternetSecurityManager zone check */
 #include <objbase.h>
 #include <urlmon.h>
 
-/* For UuidCreate */
-#pragma comment(lib, "rpcrt4")
-
 #define WIDEN2(s) L ## s
 #define WIDEN(s) WIDEN2(s)
 
@@ -43,7 +35,6 @@
 #define WINHTTP_IGNORE_REQUEST_TOTAL_LENGTH 0
 #endif
 
-static const char *prefix_http = "http://";
 static const char *prefix_https = "https://";
 static const char *upload_pack_service = "upload-pack";
 static const char *upload_pack_ls_service_url = "/info/refs?service=git-upload-pack";
@@ -59,6 +50,13 @@ static const int no_check_cert_flags = SECURITY_FLAG_IGNORE_CERT_CN_INVALID |
 	SECURITY_FLAG_IGNORE_CERT_DATE_INVALID |
 	SECURITY_FLAG_IGNORE_UNKNOWN_CA;
 
+#if defined(__MINGW32__)
+static const CLSID CLSID_InternetSecurityManager = { 0x7B8A2D94, 0x0AC9, 0x11D1,
+	{ 0x89, 0x6C, 0x00, 0xC0, 0x4F, 0xB6, 0xBF, 0xC4 } };
+static const IID IID_IInternetSecurityManager = { 0x79EAC9EE, 0xBAF9, 0x11CE,
+	{ 0x8C, 0x82, 0x00, 0xAA, 0x00, 0x4B, 0xA9, 0x0B } };
+#endif
+
 #define OWNING_SUBTRANSPORT(s) ((winhttp_subtransport *)(s)->parent.subtransport)
 
 typedef enum {
@@ -272,7 +270,7 @@ static int winhttp_stream_connect(winhttp_stream *s)
 	git_buf buf = GIT_BUF_INIT;
 	char *proxy_url = NULL;
 	wchar_t ct[MAX_CONTENT_TYPE_LEN];
-	wchar_t *types[] = { L"*/*", NULL };
+	LPCWSTR types[] = { L"*/*", NULL };
 	BOOL peerdist = FALSE;
 	int error = -1;
 	unsigned long disable_redirects = WINHTTP_DISABLE_REDIRECTS;
@@ -551,8 +549,7 @@ static int winhttp_close_connection(winhttp_subtransport *t)
 }
 
 static int winhttp_connect(
-	winhttp_subtransport *t,
-	const char *url)
+	winhttp_subtransport *t)
 {
 	wchar_t *ua = L"git/1.0 (libgit2 " WIDEN(LIBGIT2_VERSION) L")";
 	wchar_t *wide_host;
@@ -561,8 +558,6 @@ static int winhttp_connect(
 	int default_timeout = TIMEOUT_INFINITE;
 	int default_connect_timeout = DEFAULT_CONNECT_TIMEOUT;
 
-	GIT_UNUSED(url);
-
 	t->session = NULL;
 	t->connection = NULL;
 
@@ -860,7 +855,7 @@ replay:
 
 				winhttp_close_connection(t);
 
-				if (winhttp_connect(t, location8) < 0)
+				if (winhttp_connect(t) < 0)
 					return -1;
 			}
 
@@ -963,7 +958,6 @@ static int winhttp_stream_write_single(
 	size_t len)
 {
 	winhttp_stream *s = (winhttp_stream *)stream;
-	winhttp_subtransport *t = OWNING_SUBTRANSPORT(s);
 	DWORD bytes_written;
 	int error;
 
@@ -998,7 +992,7 @@ static int put_uuid_string(LPWSTR buffer, size_t buffer_len_cch)
 {
 	UUID uuid;
 	RPC_STATUS status = UuidCreate(&uuid);
-	HRESULT result;
+	int result;
 
 	if (RPC_S_OK != status &&
 		RPC_S_UUID_LOCAL_ONLY != status &&
@@ -1012,14 +1006,14 @@ static int put_uuid_string(LPWSTR buffer, size_t buffer_len_cch)
 		return -1;
 	}
 
-	result = StringCbPrintfW(
-		buffer, buffer_len_cch,
+	result = wsprintfW(
+		buffer,
 		L"%08x%04x%04x%02x%02x%02x%02x%02x%02x%02x%02x",
 		uuid.Data1, uuid.Data2, uuid.Data3,
 		uuid.Data4[0], uuid.Data4[1], uuid.Data4[2], uuid.Data4[3],
 		uuid.Data4[4], uuid.Data4[5], uuid.Data4[6], uuid.Data4[7]);
 
-	if (FAILED(result)) {
+	if (result < UUID_LENGTH_CCH) {
 		giterr_set(GITERR_OS, "Unable to generate name for temp file");
 		return -1;
 	}
@@ -1053,7 +1047,6 @@ static int winhttp_stream_write_buffered(
 	size_t len)
 {
 	winhttp_stream *s = (winhttp_stream *)stream;
-	winhttp_subtransport *t = OWNING_SUBTRANSPORT(s);
 	DWORD bytes_written;
 
 	if (!s->request && winhttp_stream_connect(s) < 0)
@@ -1135,7 +1128,7 @@ static int winhttp_stream_write_chunked(
 	}
 	else {
 		/* Append as much to the buffer as we can */
-		int count = min(CACHED_POST_BODY_BUF_SIZE - s->chunk_buffer_len, (int)len);
+		int count = (int)min(CACHED_POST_BODY_BUF_SIZE - s->chunk_buffer_len, len);
 
 		if (!s->chunk_buffer)
 			s->chunk_buffer = git__malloc(CACHED_POST_BODY_BUF_SIZE);
@@ -1195,6 +1188,8 @@ static int winhttp_uploadpack_ls(
 	winhttp_subtransport *t,
 	winhttp_stream *s)
 {
+	GIT_UNUSED(t);
+
 	s->service = upload_pack_service;
 	s->service_url = upload_pack_ls_service_url;
 	s->verb = get_verb;
@@ -1206,6 +1201,8 @@ static int winhttp_uploadpack(
 	winhttp_subtransport *t,
 	winhttp_stream *s)
 {
+	GIT_UNUSED(t);
+
 	s->service = upload_pack_service;
 	s->service_url = upload_pack_service_url;
 	s->verb = post_verb;
@@ -1217,6 +1214,8 @@ static int winhttp_receivepack_ls(
 	winhttp_subtransport *t,
 	winhttp_stream *s)
 {
+	GIT_UNUSED(t);
+
 	s->service = receive_pack_service;
 	s->service_url = receive_pack_ls_service_url;
 	s->verb = get_verb;
@@ -1228,6 +1227,8 @@ static int winhttp_receivepack(
 	winhttp_subtransport *t,
 	winhttp_stream *s)
 {
+	GIT_UNUSED(t);
+
 	/* WinHTTP only supports Transfer-Encoding: chunked
 	 * on Windows Vista (NT 6.0) and higher. */
 	s->chunked = git_has_win32_version(6, 0, 0);
@@ -1256,7 +1257,7 @@ static int winhttp_action(
 
 	if (!t->connection)
 		if ((ret = gitno_connection_data_from_url(&t->connection_data, url, NULL)) < 0 ||
-			 (ret = winhttp_connect(t, url)) < 0)
+			 (ret = winhttp_connect(t)) < 0)
 			return ret;
 
 	if (winhttp_stream_alloc(t, &s) < 0)