Add support for building the Dart VM for Android OS.

runtime/vm/vm.gypi

 # Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 {
   'variables': {
     'builtin_in_cc_file': '../bin/builtin_in.cc',
     'corelib_cc_file': '<(SHARED_INTERMEDIATE_DIR)/corelib_gen.cc',
     'corelib_impl_cc_file': '<(SHARED_INTERMEDIATE_DIR)/corelib_impl_gen.cc',
     'math_cc_file': '<(SHARED_INTERMEDIATE_DIR)/math_gen.cc',
@@ skipping 13 matching lines @@
         '../platform/platform_sources.gypi',
       ],
       'sources/': [
         # Exclude all _test.[cc|h] files.
         ['exclude', '_test\\.cc|h$'],
       ],
       'include_dirs': [
         '..',
       ],
       'conditions': [
+        ['OS=="android"', {
+          'link_settings': {
+            'libraries': [
+              '-lc',
+              '-lpthread',
+            ],
+          },
+        }],
         ['OS=="linux"', {
           'link_settings': {
             'libraries': [
               '-lpthread',
               '-lrt',
             ],
           },
         }],
         ['OS=="win"', {
           'sources/' : [
             ['exclude', 'gdbjit.cc'],
           ],
-       }]],
+       }],
+       ['dart_want_separate_host_toolset==1', {
+              'toolsets': ['host', 'target'],
+            }, {
+              'toolsets': ['target'],
+            }],
+      ],
     },
     {
       'target_name': 'libdart_lib_withcore',
       'type': 'static_library',
       'dependencies': [
         'generate_corelib_cc_file',
         'generate_corelib_impl_cc_file',
         'generate_math_cc_file',
         'generate_isolate_cc_file',
         'generate_mirrors_cc_file',
       ],
       'includes': [
         '../lib/lib_sources.gypi',
         '../lib/lib_impl_sources.gypi',
         '../lib/isolate_sources.gypi',
         '../lib/mirrors_sources.gypi',
       ],
       'sources': [
         'bootstrap.cc',
         # Include generated source files.
         '<(corelib_cc_file)',
         '<(corelib_impl_cc_file)',
         '<(math_cc_file)',
         '<(isolate_cc_file)',
         '<(mirrors_cc_file)',
       ],
       'include_dirs': [
         '..',
       ],
+      'conditions': [
+        ['dart_want_separate_host_toolset==1', {
+          'toolsets': ['host', 'target'],
+        }, {
+          'toolsets': ['target'],
+        }]
+      ],
     },
     {
       'target_name': 'libdart_lib',
       'type': 'static_library',
       'includes': [
         '../lib/lib_sources.gypi',
         '../lib/lib_impl_sources.gypi',
         '../lib/isolate_sources.gypi',
         '../lib/mirrors_sources.gypi',
       ],
       'sources': [
         'bootstrap_nocorelib.cc',
       ],
       'include_dirs': [
         '..',
       ],
+      'conditions': [
+        ['dart_want_separate_host_toolset==1', {
+          'toolsets': ['host', 'target'],
+        }, {
+          'toolsets': ['target'],
+        }]
+      ],
     },
     {
       'target_name': 'generate_corelib_cc_file',
       'type': 'none',
       'includes': [
         # Load the runtime implementation sources.
         '../lib/lib_sources.gypi',
         # Load the shared core library sources.
         '../../corelib/src/corelib_sources.gypi',
       ],
@@ skipping 19 matching lines @@
             'python',
             'tools/create_string_literal.py',
             '--output', '<(corelib_cc_file)',
             '--input_cc', '<(builtin_in_cc_file)',
             '--include', 'vm/bootstrap.h',
             '--var_name', 'dart::Bootstrap::corelib_source_',
             '<@(_sources)',
           ],
           'message': 'Generating ''<(corelib_cc_file)'' file.'
         },
-      ]
+      ],
+      'conditions': [
+        ['dart_want_separate_host_toolset==1', {
+          'toolsets': ['host', 'target'],
+        }, {
+          'toolsets': ['target'],
+        }]
+      ],
     },
     {
       'target_name': 'generate_corelib_impl_cc_file',
       'type': 'none',
       'includes': [
         # Load the runtime implementation sources.
         '../lib/lib_impl_sources.gypi',
         # Load the shared core library sources.
         '../../corelib/src/implementation/corelib_impl_sources.gypi',
       ],
@@ skipping 19 matching lines @@
             'python',
             'tools/create_string_literal.py',
             '--output', '<(corelib_impl_cc_file)',
             '--input_cc', '<(builtin_in_cc_file)',
             '--include', 'vm/bootstrap.h',
             '--var_name', 'dart::Bootstrap::corelib_impl_source_',
             '<@(_sources)',
           ],
           'message': 'Generating ''<(corelib_impl_cc_file)'' file.'
         },
-      ]
+      ],
+      'conditions': [
+        ['dart_want_separate_host_toolset==1', {
+          'toolsets': ['host', 'target'],
+        }, {
+          'toolsets': ['target'],
+        }]
+      ],
     },
     {
       'target_name': 'generate_math_cc_file',
       'type': 'none',
       'includes': [
         # Load the shared math library sources.
         '../../lib/math/math_sources.gypi',
       ],
       'sources/': [
         # Exclude all .[cc|h] files.
@@ skipping 17 matching lines @@
             'python',
             'tools/create_string_literal.py',
             '--output', '<(math_cc_file)',
             '--input_cc', '<(builtin_in_cc_file)',
             '--include', 'vm/bootstrap.h',
             '--var_name', 'dart::Bootstrap::math_source_',
             '<@(_sources)',
           ],
           'message': 'Generating ''<(math_cc_file)'' file.'
         },
-      ]
+      ],
+      'conditions': [
+        ['dart_want_separate_host_toolset==1', {
+          'toolsets': ['host', 'target'],
+        }, {
+          'toolsets': ['target'],
+        }]
+      ],
     },
     {
       'target_name': 'generate_mirrors_cc_file',
       'type': 'none',
       'includes': [
         # Load the shared core library sources.
         '../lib/mirrors_sources.gypi',
       ],
       'sources/': [
         # Exclude all .[cc|h] files.
@@ skipping 17 matching lines @@
             'python',
             'tools/create_string_literal.py',
             '--output', '<(mirrors_cc_file)',
             '--input_cc', '<(builtin_in_cc_file)',
             '--include', 'vm/bootstrap.h',
             '--var_name', 'dart::Bootstrap::mirrors_source_',
             '<@(_sources)',
           ],
           'message': 'Generating ''<(mirrors_cc_file)'' file.'
         },
-      ]
+      ],
+      'conditions': [
+        ['dart_want_separate_host_toolset==1', {
+          'toolsets': ['host', 'target'],
+        }, {
+          'toolsets': ['target'],
+        }]
+      ],
     },
     {
       'target_name': 'generate_isolate_cc_file',
       'type': 'none',
       'includes': [
         # Load the runtime implementation sources.
         '../lib/isolate_sources.gypi',
       ],
       'sources/': [
         # Exclude all .[cc|h] files.
@@ skipping 17 matching lines @@
             'python',
             'tools/create_string_literal.py',
             '--output', '<(isolate_cc_file)',
             '--input_cc', '<(builtin_in_cc_file)',
             '--include', 'vm/bootstrap.h',
             '--var_name', 'dart::Bootstrap::isolate_source_',
             '<@(_sources)',
           ],
           'message': 'Generating ''<(isolate_cc_file)'' file.'
         },
+      ],
+      'conditions': [
+        ['dart_want_separate_host_toolset==1', {
+          'toolsets': ['host', 'target'],
+        }, {
+          'toolsets': ['target'],
+        }]
       ]
     },
     {
       'target_name': 'generate_snapshot_test_dat_file',
       'type': 'none',
       'actions': [
         {
           'action_name': 'generate_snapshot_test_dat',
           'inputs': [
             '../tools/create_string_literal.py',
             '<(snapshot_test_in_dat_file)',
             '<(snapshot_test_dart_file)',
           ],
           'outputs': [
             '<(snapshot_test_dat_file)',
           ],
           'action': [
             'python',
             'tools/create_string_literal.py',
             '--output', '<(snapshot_test_dat_file)',
             '--input_cc', '<(snapshot_test_in_dat_file)',
             '--include', 'INTENTIONALLY_LEFT_BLANK',
             '--var_name', 'INTENTIONALLY_LEFT_BLANK_TOO',
             '<(snapshot_test_dart_file)',
           ],
           'message': 'Generating ''<(snapshot_test_dat_file)'' file.'
         },
-      ]
+      ],
+      'conditions': [
+        ['dart_want_separate_host_toolset==1', {
+          'toolsets': ['host'],
+        }, {
+          'toolsets': ['target'],
+        }],
+      ],
     },
   ]
 }