Adding cross-compile ability to the make build

test/toolsets/toolsets.gyp

Index: test/toolsets/toolsets.gyp
===================================================================
--- test/toolsets/toolsets.gyp	(revision 0)
+++ test/toolsets/toolsets.gyp	(revision 0)
@@ -0,0 +1,34 @@
+{
+  'target_defaults': {
+    'target_conditions': [
+      ['_toolset=="target"', {'defines': ['TARGET']}]
+    ]
+  },
+  'targets': [
+    {
+      'target_name': 'toolsets',
+      'type': 'static_library',
+      'toolsets': ['target', 'host'],
+      'sources': [
+        'toolsets.cc',
+      ],
+    },
+    {
+      'target_name': 'host-main',
+      'type': 'executable',
+      'toolsets': ['host'],
+      'dependencies': ['toolsets'],
+      'sources': [
+        'main.cc',
+      ],
+    },
+    {
+      'target_name': 'target-main',
+      'type': 'executable',
+      'dependencies': ['toolsets'],
+      'sources': [
+        'main.cc',
+      ],
+    },
+  ],
+}