Basic underpinnings of the gyp equivalent of the Linux SHARED=1 build:...

base/base.gyp

 # Copyright (c) 2009 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'includes': [
     '../build/common.gypi',
   ],
   'targets': [
     {
       'target_name': 'base',
-      'type': 'static_library',
+      'type': '<(library)',
       'dependencies': [
         '../third_party/icu38/icu38.gyp:icui18n',
         '../third_party/icu38/icu38.gyp:icuuc',
       ],
       'msvs_guid': '1832A374-8A74-4F9E-B536-69A699B3E165',
       'sources': [
         '../build/build_config.h',
         'third_party/dmg_fp/dmg_fp.h',
         'third_party/dmg_fp/dtoa.cc',
         'third_party/dmg_fp/g_fmt.cc',
@@ skipping 419 matching lines @@
               'resource_util.cc',
               'win_util.cc',
               'wmi_util.cc',
             ],
           },
         ],
       ],
     },
     {
       'target_name': 'base_gfx',
-      'type': 'static_library',
+      'type': '<(library)',
       'msvs_guid': 'A508ADD3-CECE-4E0F-8448-2F5E454DF551',
       'sources': [
         'gfx/gdi_util.cc',
         'gfx/gdi_util.h',
         'gfx/gtk_util.cc',
         'gfx/gtk_util.h',
         'gfx/jpeg_codec.cc',
         'gfx/jpeg_codec.h',
         'gfx/native_theme.cc',
         'gfx/native_theme.h',
@@ skipping 173 matching lines @@
             'system_monitor_unittest.cc',
             'time_win_unittest.cc',
             'win_util_unittest.cc',
             'wmi_util_unittest.cc',
           ],
         }],
       ],
     },
     {
       'target_name': 'test_support_base',
-      'type': 'static_library',
+      'type': '<(library)',
       'dependencies': [
         'base',
         '../testing/gtest.gyp:gtest',
       ],
       'sources': [
         'perftimer.cc',
         'run_all_perftests.cc',
       ],
       'direct_dependent_settings': {
         'defines': [
@@ skipping 20 matching lines @@
           'target_name': 'debug_message',
           'type': 'executable',
           'sources': [
             'debug_message.cc',
           ],
         },
       ],
     }],
   ],
 }