Disable incremental linking for gn osmesa

third_party/mesa/mesa.gyp

 # Copyright (c) 2012 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': {
     'generated_src_dir': 'src/chromium_gensrc',
   },
   'target_defaults': {
     'defines': [
@@ skipping 668 matching lines @@
         'mesa_headers',
         'mesa',
       ],
       'xcode_settings': {
         'OTHER_LDFLAGS': [
           '-lstdc++',
         ],
       },
       'conditions': [
         ['OS=="win"', {
+          'variables': {
+            # Disable incremental linking for all modules to avoid linker crash.
+            # TODO(brucedawson) : remove when crbug.com/482671 is resolved by
+            # Microsoft.
+            # 0: inherit, 1: disabled, 2: enabled.
+            'msvs_debug_link_incremental': '1',

[scottmg, 2016/03/29 17:03:43]

I don't know what that variable is supposed to do. I think you want
msvs_settings>VCLinkerTool>LinkIncremental: 1.

+          },
           'defines': [
             'BUILD_GL32',
             'KEYWORD1=GLAPI',
             'KEYWORD2=GLAPIENTRY',
           ],
         }],
         ['OS=="linux"', {
           'link_settings': {
             'libraries': [
               '-ldl',
@@ skipping 85 matching lines @@
           'direct_dependent_settings': {
             'include_dirs': [
               '<(generated_src_dir)/egl/wayland/wayland-drm',
             ],
           },
         },
       ],
     }],
   ],
 }