Only depend on libgabi++ for the target toolset.

icu.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': {
     'use_system_icu%': 0,
     'icu_use_data_file_flag%': 0,
     'want_separate_host_toolset%': 1,
   },
@@ skipping 324 matching lines @@
             }],
             ['OS == "android" and clang==0', {
                 # Disable sincos() optimization to avoid a linker error since
                 # Android's math library doesn't have sincos().  Either
                 # -fno-builtin-sin or -fno-builtin-cos works.
                 'cflags': [
                     '-fno-builtin-sin',
                 ],
             }],
             ['OS == "android" and use_system_stlport == 1', {
-              # ICU requires RTTI, which is not present in the system's stlport,
-              # so we have to include gabi++.
-              'include_dirs': [
-                '<(android_src)/abi/cpp/include',
+              'target_conditions': [
+                ['_toolset == "target"', {
+                  # ICU requires RTTI, which is not present in the system's
+                  # stlport, so we have to include gabi++.
+                  'include_dirs': [
+                    '<(android_src)/abi/cpp/include',
+                  ],
+                  'link_settings': {
+                    'libraries': [
+                      '-lgabi++',
+                    ],
+                  },
+                }],
               ],
-              'link_settings': {
-                'libraries': [
-                  '-lgabi++',
-                ],
-              },
             }],
           ],
         },
         {
           'target_name': 'icuuc',
           'type': '<(component)',
           'sources': [
             'source/common/bmpset.cpp',
             'source/common/brkeng.cpp',
             'source/common/brkiter.cpp',
@@ skipping 194 matching lines @@
               },
             }],
             ['OS == "win"', {
               'msvs_settings': {
                 'VCCLCompilerTool': {
                   'RuntimeTypeInfo': 'true',
                 },
               },
             }],
             ['OS == "android" and use_system_stlport == 1', {
-              # ICU requires RTTI, which is not present in the system's stlport,
-              # so we have to include gabi++.
-              'include_dirs': [
-                '<(android_src)/abi/cpp/include',
+              'target_conditions': [
+                ['_toolset == "target"', {
+                  # ICU requires RTTI, which is not present in the system's
+                  # stlport, so we have to include gabi++.
+                  'include_dirs': [
+                    '<(android_src)/abi/cpp/include',
+                  ],
+                  'link_settings': {
+                    'libraries': [
+                      '-lgabi++',
+                    ],
+                  },
+                }],
               ],
-              'link_settings': {
-                'libraries': [
-                  '-lgabi++',
-                ],
-              },
             }],
             ['clang==1', {
               'xcode_settings': {
                 'WARNING_CFLAGS': [
                   # ICU uses its own deprecated functions.
                   '-Wno-deprecated-declarations',
                   # ICU prefers `a && b || c` over `(a && b) || c`.
                   '-Wno-logical-op-parentheses',
                   # ICU has some `unsigned < 0` checks.
                   '-Wno-tautological-compare',
@@ skipping 266 matching lines @@
               'toolsets': ['target'],
             }, {
               'toolsets': ['host', 'target'],
             }],
           ],
         },
       ],
     }],
   ],
 }