Use Boost.Config

include/beast/config.hpp

@@ -8,20 +8,23 @@
 #ifndef BEAST_CONFIG_HPP
 #define BEAST_CONFIG_HPP
 
+#include <boost/config.hpp>
+
+// Available to every header
 #include <boost/core/ignore_unused.hpp>
 #include <boost/static_assert.hpp>
 
 /*
 	_MSC_VER and _MSC_FULL_VER by version:
 
-	14.0 (2015)	        1900	190023026
-	14.0 (2015 Update 1)	1900	190023506
-	14.0 (2015 Update 2)	1900	190023918
-	14.0 (2015 Update 3)	1900	190024210
+	14.0 (2015)             1900    	190023026
+	14.0 (2015 Update 1)    1900    	190023506
+	14.0 (2015 Update 2)    1900    	190023918
+	14.0 (2015 Update 3)    1900    	190024210
 */
 
-#if defined(_MSC_FULL_VER)
-#if _MSC_FULL_VER < 190024210
+#ifdef BOOST_MSVC
+#if BOOST_MSVC_FULL_VER < 190024210
 static_assert(false,
 	"This library requires Visual Studio 2015 Update 3 or later");
 #endif

include/beast/core/detail/cpu_info.hpp

@@ -20,7 +20,7 @@
 
 #if ! BEAST_NO_INTRINSICS
 
-#if defined(BOOST_MSVC)
+#ifdef BOOST_MSVC
 #include <intrin.h> // __cpuid
 #else
 #include <cpuid.h>  // __get_cpuid
@@ -41,7 +41,7 @@ cpuid(
     std::uint32_t& ecx,
     std::uint32_t& edx)
 {
-#if defined(BOOST_MSVC)
+#ifdef BOOST_MSVC
     int regs[4];
     __cpuid(regs, id);
     eax = regs[0];

include/beast/core/detail/integer_sequence.hpp

@@ -8,6 +8,7 @@
 #ifndef BEAST_DETAIL_INTEGER_SEQUENCE_HPP
 #define BEAST_DETAIL_INTEGER_SEQUENCE_HPP
 
+#include <boost/config.hpp>
 #include <cstddef>
 #include <type_traits>
 #include <utility>
@@ -39,9 +40,9 @@ struct sizeof_workaround
     static std::size_t constexpr size = sizeof... (Args);
 };
 
-#ifdef _MSC_VER
+#ifdef BOOST_MSVC
 
-// This implementation compiles on MSVC and clang but not gcc
+// This implementation compiles on real MSVC and clang but not gcc
 
 template<class T, unsigned long long N, class Seq>
 struct make_integer_sequence_unchecked;