Make windows include lean and mean.

Remove Appveyor script for now.

appveyor.yml

@@ -1,111 +0,0 @@
-# Copyright 2016 Peter Dimov
-# Distributed under the Boost Software License, Version 1.0.
-# (See accompanying file LICENSE_1_0.txt or copy at http://boost.org/LICENSE_1_0.txt)
-
-version: 1.0.{build}-{branch}
-
-shallow_clone: true
-
-branches:
-  only:
-    - master
-    - develop
-
-platform:
-  - x64
-
-environment:
-  matrix:
-    - ARGS: --toolset=msvc-9.0  address-model=32
-    - ARGS: --toolset=msvc-10.0 address-model=32
-    - ARGS: --toolset=msvc-11.0 address-model=32
-    - ARGS: --toolset=msvc-12.0 address-model=32
-    - ARGS: --toolset=msvc-14.0 address-model=32
-    - ARGS: --toolset=msvc-12.0 address-model=64
-    - ARGS: --toolset=msvc-14.0 address-model=64
-    - ARGS: --toolset=msvc-14.0 address-model=64 cxxstd=latest
-    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
-      ARGS: --toolset=msvc-14.1 address-model=64
-    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
-      ARGS: --toolset=msvc-14.1 address-model=32
-    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
-      ARGS: --toolset=msvc-14.1 address-model=64 cxxstd=17
-    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
-      ARGS: --toolset=msvc-14.1 address-model=64 cxxstd=latest cxxflags=-permissive-
-    - ARGS: --toolset=gcc address-model=64
-      PATH: C:\mingw-w64\x86_64-6.3.0-posix-seh-rt_v5-rev1\mingw64\bin;%PATH%
-    - ARGS: --toolset=gcc address-model=64 cxxflags=-std=gnu++1z
-      PATH: C:\mingw-w64\x86_64-6.3.0-posix-seh-rt_v5-rev1\mingw64\bin;%PATH%
-    - ARGS: --toolset=gcc address-model=32
-      PATH: C:\mingw-w64\i686-5.3.0-posix-dwarf-rt_v4-rev0\mingw32\bin;%PATH%
-    - ARGS: --toolset=gcc address-model=32 linkflags=-Wl,-allow-multiple-definition
-      PATH: C:\MinGW\bin;%PATH%
-    - ARGS: --toolset=gcc address-model=32 define=_POSIX_C_SOURCE=200112L threadapi=pthread link=static
-      PATH: C:\cygwin\bin;%PATH%
-    - ARGS: --toolset=gcc address-model=64 define=_POSIX_C_SOURCE=200112L define=__USE_ISOC99 threadapi=pthread link=static
-      PATH: C:\cygwin64\bin;%PATH%
-
-install:
-  - cd ..
-  - git clone -b %APPVEYOR_REPO_BRANCH% --depth 1 https://github.com/boostorg/boost.git boost-root
-  - cd boost-root
-  - git submodule update --init tools/build
-  - git submodule update --init tools/boost_install
-  - git submodule update --init libs/headers
-  - git submodule update --init libs/config
-  - git submodule update --init libs/core
-  - git submodule update --init libs/container_hash
-  - git submodule update --init libs/detail
-  - git submodule update --init libs/smart_ptr
-  - git submodule update --init libs/predef
-  - git submodule update --init libs/assert
-  - git submodule update --init libs/throw_exception
-  - git submodule update --init libs/mpl
-  - git submodule update --init libs/type_traits
-  - git submodule update --init libs/static_assert
-  - git submodule update --init libs/integer
-  - git submodule update --init libs/preprocessor
-  - git submodule update --init libs/functional
-  - git submodule update --init libs/program_options
-  - git submodule update --init libs/chrono
-  - git submodule update --init libs/system
-  - git submodule update --init libs/thread
-  - git submodule update --init libs/winapi
-  - git submodule update --init libs/move
-  - git submodule update --init libs/date_time
-  - git submodule update --init libs/ratio
-  - git submodule update --init libs/iterator
-  - git submodule update --init libs/range
-  - git submodule update --init libs/any
-  - git submodule update --init libs/concept_check
-  - git submodule update --init libs/array
-  - git submodule update --init libs/timer
-  - git submodule update --init libs/bind
-  - git submodule update --init libs/utility
-  - git submodule update --init libs/io
-  - git submodule update --init libs/intrusive
-  - git submodule update --init libs/container
-  - git submodule update --init libs/tuple
-  - git submodule update --init libs/exception
-  - git submodule update --init libs/function
-  - git submodule update --init libs/type_index
-  - git submodule update --init libs/lexical_cast
-  - git submodule update --init libs/numeric
-  - git submodule update --init libs/math
-  - git submodule update --init libs/tokenizer
-  - git submodule update --init libs/optional
-  - git submodule update --init libs/atomic
-  - git submodule update --init libs/rational
-  - git submodule update --init libs/algorithm
-  - xcopy /s /e /q %APPVEYOR_BUILD_FOLDER% libs\regex
-  - bootstrap
-  - b2 headers
-
-build: off
-
-test_script:
-  - cd libs\config\test
-  - ..\..\..\b2 config_info_travis_install %ARGS%
-  - config_info_travis
-  - cd ..\..\regex\test
-  - ..\..\..\b2 -j3 %ARGS% define=CI_SUPPRESS_KNOWN_ISSUES

include/boost/regex/v5/w32_regex_traits.hpp

@@ -29,6 +29,8 @@
 #include <boost/regex/v5/primary_transform.hpp>
 #include <boost/regex/v5/object_cache.hpp>
 
+#define VC_EXTRALEAN
+#define WIN32_LEAN_AND_MEAN
 #include <windows.h>
 
 #if defined(_MSC_VER) && !defined(_WIN32_WCE) && !defined(UNDER_CE)