Add solaris support to gyp build.

Patch by Ben Noordhuis <info@bnoordhuis.nl>. I don't have a Solaris box around to test this myself.

BUG=v8:1684

Review URL: http://codereview.chromium.org/7889038

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9291 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

build/common.gypi

@@ -184,6 +184,9 @@
           }],
         ],
       }],
+      ['OS=="solaris"', {
+        'defines': [ '__C99FEATURES__=1' ],  # isinf() etc.
+      }],
     ],
     'configurations': {
       'Debug': {

tools/gyp/v8.gyp

@@ -641,6 +641,13 @@
                 ],
               }
             ],
+            ['OS=="solaris"', {
+                'sources': [
+                  '../../src/platform-solaris.cc',
+                  '../../src/platform-posix.cc',
+                ],
+              }
+            ],
             ['OS=="mac"', {
               'sources': [
                 '../../src/platform-macos.cc',