Extract build configuration into a separate header and move it to the base lib

src/checks.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_CHECKS_H_
 #define V8_CHECKS_H_
 
 #include <string.h>
 
 #include "../include/v8stdint.h"
@@ skipping 222 matching lines @@
 #define CHECK_NE(unexpected, value) CheckNonEqualsHelper(__FILE__, __LINE__, \
   #unexpected, unexpected, #value, value)
 
 
 #define CHECK_GT(a, b) CHECK((a) > (b))
 #define CHECK_GE(a, b) CHECK((a) >= (b))
 #define CHECK_LT(a, b) CHECK((a) < (b))
 #define CHECK_LE(a, b) CHECK((a) <= (b))
 
 
-// Use C++11 static_assert if possible, which gives error
-// messages that are easier to understand on first sight.
-#if V8_HAS_CXX11_STATIC_ASSERT
-#define STATIC_ASSERT(test) static_assert(test, #test)
-#else
-// This is inspired by the static assertion facility in boost.  This
-// is pretty magical.  If it causes you trouble on a platform you may
-// find a fix in the boost code.
-template <bool> class StaticAssertion;
-template <> class StaticAssertion<true> { };
-// This macro joins two tokens.  If one of the tokens is a macro the
-// helper call causes it to be resolved before joining.
-#define SEMI_STATIC_JOIN(a, b) SEMI_STATIC_JOIN_HELPER(a, b)
-#define SEMI_STATIC_JOIN_HELPER(a, b) a##b
-// Causes an error during compilation of the condition is not
-// statically known to be true.  It is formulated as a typedef so that
-// it can be used wherever a typedef can be used.  Beware that this
-// actually causes each use to introduce a new defined type with a
-// name depending on the source line.
-template <int> class StaticAssertionHelper { };
-#define STATIC_ASSERT(test)                                                    \
-  typedef                                                                     \
-    StaticAssertionHelper<sizeof(StaticAssertion<static_cast<bool>((test))>)> \
-    SEMI_STATIC_JOIN(__StaticAssertTypedef__, __LINE__) V8_UNUSED
-#endif
-
-
 #ifdef DEBUG
 #ifndef OPTIMIZED_DEBUG
 #define ENABLE_SLOW_ASSERTS    1
 #endif
 #endif
 
 namespace v8 {
 namespace internal {
 #ifdef ENABLE_SLOW_ASSERTS
 #define SLOW_ASSERT(condition) \
@@ skipping 35 matching lines @@
 
 // "Extra checks" are lightweight checks that are enabled in some release
 // builds.
 #ifdef ENABLE_EXTRA_CHECKS
 #define EXTRA_CHECK(condition) CHECK(condition)
 #else
 #define EXTRA_CHECK(condition) ((void) 0)
 #endif
 
 #endif  // V8_CHECKS_H_