VulkanViewer on Android

gyp/shaderc.gyp

 # Copyright 2016 Google Inc.
 #
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # Builds shaderc for the Vulkan backend
 {
   'variables': {
     'variables': { # This is the dreaded nested variables dict so that we can
                    # have dependent variables
@@ skipping 10 matching lines @@
               'shaderc_project_type' : 'MSVS2013',
             }],
             [ 'MSVS_VERSION == "2015"', {
               'shaderc_project_type' : 'MSVS2015',
             }],
           ],
         }, {
           'shaderc_project_type' : 'ninja',
         }],
       ],
-      'shaderc_out_path': '../out/<(CONFIGURATION_NAME)/shaderc_out_<(skia_arch_type)',
+      'shaderc_out_path': '<(PRODUCT_DIR)/shaderc_out_<(skia_arch_type)',
     },
     # Export out of nested variables.
     'shaderc_build_configuration': '<(shaderc_build_configuration)',
     'shaderc_project_type': '<(shaderc_project_type)',
     'shaderc_out_path': '<(shaderc_out_path)',
     'shaderc_lib_name': '<(shaderc_lib_name)',
+    'android_toolchain%': '',
     
     # On Windows the library winds up inside a 'Debug' or 'Release' dir, not so
     # with ninja project build.
     'conditions': [
       [ 'skia_os == "win"', {
         'shaderc_lib_full_path': '<(shaderc_out_path)/libshaderc/<(shaderc_build_configuration)/<(shaderc_lib_name)',
       }, {
         'shaderc_lib_full_path': '<(shaderc_out_path)/libshaderc/<(shaderc_lib_name)',
       }],
     ]
   },  
   'targets': [  
     {
       # Call out to a python script to build shaderc_combined and then copy it
       # to out/<Configuration>
       'target_name': 'shaderc_combined',
       'type': 'none',
       'actions': [
         {
           'action_name': 'compile_shaderc',
           'inputs': [
             '<!@(python find.py ../third_party/externals/shaderc2 "*")',
             '../tools/build_shaderc.py',
           ],
           'outputs': [
              '<(shaderc_lib_full_path)',
           ],
-          'action': ['python', '../tools/build_shaderc.py', '-s', '../third_party/externals/shaderc2', '-o', '<(shaderc_out_path)', '-a', '<(skia_arch_type)', '-t', '<(shaderc_build_configuration)', '-p', '<(shaderc_project_type)'],
+          'action': ['python', '../tools/build_shaderc.py', '-s', '../third_party/externals/shaderc2', '-o', '<(shaderc_out_path)', '-a', '<(skia_arch_type)', '-t', '<(shaderc_build_configuration)', '-p', '<(shaderc_project_type)', '-c', '<(android_toolchain)'],
         },
       ],     
       'copies': [
         {
-          'destination': '../out/<(CONFIGURATION_NAME)',
+          'destination': '<(PRODUCT_DIR)',
           'files': ['<(shaderc_lib_full_path)'],
         },
       ],
       'all_dependent_settings': {
         'link_settings': {
           'libraries': [
             '<(shaderc_lib_name)',
           ],
         },
       },
     },
   ],
 }