Turn libplatform into a component

src/v8.gyp

Index: src/v8.gyp
diff --git a/src/v8.gyp b/src/v8.gyp
index a494fd6684022148001e2beee511a037e9944cd2..f23c579be777b9c3e778ef97e762223d063e84b8 100644
--- a/src/v8.gyp
+++ b/src/v8.gyp
@@ -2042,7 +2042,7 @@
     },
     {
       'target_name': 'v8_libplatform',
-      'type': 'static_library',
+      'type': '<(component)',
       'variables': {
         'optimize': 'max',
       },
@@ -2056,6 +2056,7 @@
       ],
       'sources': [
         '../include/libplatform/libplatform.h',
+        '../include/libplatform/libplatform-export.h',
         '../include/libplatform/v8-tracing.h',
         'libplatform/default-platform.cc',
         'libplatform/default-platform.h',
@@ -2077,6 +2078,12 @@
         }, {
           'toolsets': ['target'],
         }],
+        ['component=="shared_library"', {
+          'direct_dependent_settings': {
+            'defines': [ 'USING_V8_PLATFORM_SHARED' ],
+          },
+          'defines': [ 'BUILD_V8_PLATFORM_SHARED' ],

[Michael Achenbach, 2016/09/27 13:09:09]

You called it BUILDING

+        }]
       ],
       'direct_dependent_settings': {
         'include_dirs': [