diff --git a/.travis.yml b/.travis.yml
index 331261d09..a736dd8cb 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -39,7 +39,12 @@ language: cpp
 compiler: clang
 
 env:
-  - TARGET_PLATFORM=Android
+  - TARGET_PLATFORM=Android_arm
+  - TARGET_PLATFORM=Android_arm64
+  - TARGET_PLATFORM=Android_x86
+  - TARGET_PLATFORM=Android_x86_64
+  - TARGET_PLATFORM=Android_mips
+  - TARGET_PLATFORM=Android_mips64
   - TARGET_PLATFORM=Linux
   - TARGET_PLATFORM=NaCl
   - TARGET_PLATFORM=Mac
@@ -49,7 +54,7 @@ before_install:
   - if [ $TRAVIS_OS_NAME == linux ]; then sudo apt-get install -y clang python pkg-config curl bzip2 unzip make; fi
   - if [ $TARGET_PLATFORM == Linux ]; then sudo apt-get install -y libibus-1.0-dev libglib2.0-dev libqt4-dev libgtk2.0-dev libxcb-xfixes0-dev; fi
   - if [ $TARGET_PLATFORM == NaCl ]; then sudo apt-get install -y libc6-i386 lib32stdc++6; fi
-  - if [ $TARGET_PLATFORM == Android ]; then sudo apt-get install --no-install-recommends openjdk-7-jdk openjdk-7-jre-headless libjsr305-java ant zip libc6-i386 lib32stdc++6 lib32ncurses5 lib32z1; fi
+  - if [ ${TARGET_PLATFORM:0:7} == Android ]; then sudo apt-get install --no-install-recommends openjdk-7-jdk openjdk-7-jre-headless libjsr305-java ant zip libc6-i386 lib32stdc++6 lib32ncurses5 lib32z1; fi
 
 install:
   - if [ $TRAVIS_OS_NAME == linux ]; then git -C src/third_party clone https://chromium.googlesource.com/chromium/tools/depot_tools.git; fi
@@ -59,20 +64,20 @@ install:
   - if [ $TARGET_PLATFORM == Mac ]; then git -C src/third_party clone https://chromium.googlesource.com/chromium/tools/depot_tools.git; fi
   - if [ $TARGET_PLATFORM == Mac ]; then export PATH="$PATH":`pwd`/src/third_party/depot_tools; fi
   - if [ $TARGET_PLATFORM == NaCl ]; then cd src/third_party && curl -LO http://storage.googleapis.com/nativeclient-mirror/nacl/nacl_sdk/nacl_sdk.zip && unzip nacl_sdk.zip && rm nacl_sdk.zip && cd nacl_sdk && ./naclsdk install pepper_45 && cd ../../../; fi
-  - if [ $TARGET_PLATFORM == Android ]; then jdk_switcher use openjdk7; fi
-  - if [ $TARGET_PLATFORM == Android ]; then cd src/third_party && curl -L http://dl.google.com/android/ndk/android-ndk-r10e-linux-x86_64.bin -O && chmod u+x android-ndk-r10e-linux-x86_64.bin && ./android-ndk-r10e-linux-x86_64.bin > /dev/null && rm android-ndk-r10e-linux-x86_64.bin && curl -L http://dl.google.com/android/android-sdk_r24.1.2-linux.tgz | tar -zx && cd ../../; fi
-  - if [ $TARGET_PLATFORM == Android ]; then export ANDROID_NDK_HOME=`pwd`/src/third_party/android-ndk-r10e ; fi
-  - if [ $TARGET_PLATFORM == Android ]; then export ANDROID_HOME=`pwd`/src/third_party/android-sdk-linux ; fi
-  - if [ $TARGET_PLATFORM == Android ]; then export PATH="$PATH":${ANDROID_HOME}/tools:${ANDROID_HOME}/platform-tools:${ANDROID_NDK_HOME}; fi
-  - if [ $TARGET_PLATFORM == Android ]; then echo y | android update sdk --all --force --no-ui --filter android-22; fi
-  - if [ $TARGET_PLATFORM == Android ]; then echo y | android update sdk --all --force --no-ui --filter build-tools-22.0.0; fi
-  - if [ $TARGET_PLATFORM == Android ]; then echo y | android update sdk --all --force --no-ui --filter extra-android-support; fi
-  - if [ $TARGET_PLATFORM == Android ]; then echo y | android update sdk --all --force --no-ui --filter platform-tool; fi
+  - if [ ${TARGET_PLATFORM:0:7} == Android ]; then jdk_switcher use openjdk7; fi
+  - if [ ${TARGET_PLATFORM:0:7} == Android ]; then cd src/third_party && curl -LO http://dl.google.com/android/repository/android-ndk-r12b-linux-x86_64.zip && unzip -q android-ndk-r12b-linux-x86_64.zip && rm android-ndk-r12b-linux-x86_64.zip && curl -L http://dl.google.com/android/android-sdk_r24.1.2-linux.tgz | tar -zx && cd ../../; fi
+  - if [ ${TARGET_PLATFORM:0:7} == Android ]; then export ANDROID_NDK_HOME=`pwd`/src/third_party/android-ndk-r12b ; fi
+  - if [ ${TARGET_PLATFORM:0:7} == Android ]; then export ANDROID_HOME=`pwd`/src/third_party/android-sdk-linux ; fi
+  - if [ ${TARGET_PLATFORM:0:7} == Android ]; then export PATH="$PATH":${ANDROID_HOME}/tools:${ANDROID_HOME}/platform-tools:${ANDROID_NDK_HOME}; fi
+  - if [ ${TARGET_PLATFORM:0:7} == Android ]; then echo y | android update sdk --all --force --no-ui --filter android-22; fi
+  - if [ ${TARGET_PLATFORM:0:7} == Android ]; then echo y | android update sdk --all --force --no-ui --filter build-tools-22.0.0; fi
+  - if [ ${TARGET_PLATFORM:0:7} == Android ]; then echo y | android update sdk --all --force --no-ui --filter extra-android-support; fi
+  - if [ ${TARGET_PLATFORM:0:7} == Android ]; then echo y | android update sdk --all --force --no-ui --filter platform-tool; fi
 
 script:
   - cd ./src
-  - if [ $TARGET_PLATFORM == Android ]; then python build_mozc.py gyp --target_platform=Android; fi
-  - if [ $TARGET_PLATFORM == Android ]; then python build_mozc.py build -c Release package; fi
+  - if [ ${TARGET_PLATFORM:0:7} == Android ]; then python build_mozc.py gyp --target_platform=Android --android_arch=${TARGET_PLATFORM:8:6}; fi
+  - if [ ${TARGET_PLATFORM:0:7} == Android ]; then python build_mozc.py build -c Release package; fi
   - if [ $TARGET_PLATFORM == Linux ]; then python build_mozc.py gyp --target_platform=Linux; fi
   - if [ $TARGET_PLATFORM == Linux ]; then python build_mozc.py build -c Release package; fi
   - if [ $TARGET_PLATFORM == Linux ]; then python build_mozc.py runtests -c Release; fi
@@ -87,7 +92,17 @@ matrix:
   - os: linux
     env: TARGET_PLATFORM=Mac
   - os: osx
-    env: TARGET_PLATFORM=Android
+    env: TARGET_PLATFORM=Android_arm
+  - os: osx
+    env: TARGET_PLATFORM=Android_arm64
+  - os: osx
+    env: TARGET_PLATFORM=Android_x86
+  - os: osx
+    env: TARGET_PLATFORM=Android_x86_64
+  - os: osx
+    env: TARGET_PLATFORM=Android_mips
+  - os: osx
+    env: TARGET_PLATFORM=Android_mips64
   - os: osx
     env: TARGET_PLATFORM=Linux
   - os: osx
diff --git a/docker/ubuntu14.04/Dockerfile b/docker/ubuntu14.04/Dockerfile
index 15d13ecdb..7c81dedce 100644
--- a/docker/ubuntu14.04/Dockerfile
+++ b/docker/ubuntu14.04/Dockerfile
@@ -53,9 +53,9 @@ RUN mkdir -p /home/mozc_builder/work
 WORKDIR /home/mozc_builder/work
 
 ## Android SDK/NDK
-RUN curl -L http://dl.google.com/android/ndk/android-ndk-r10e-linux-x86_64.bin -O && chmod u+x android-ndk-r10e-linux-x86_64.bin && ./android-ndk-r10e-linux-x86_64.bin && rm android-ndk-r10e-linux-x86_64.bin
+RUN curl -LO http://dl.google.com/android/repository/android-ndk-r12b-linux-x86_64.zip && unzip android-ndk-r12b-linux-x86_64.zip && rm android-ndk-r12b-linux-x86_64.zip
 RUN curl -L http://dl.google.com/android/android-sdk_r24.1.2-linux.tgz | tar -zx
-ENV ANDROID_NDK_HOME /home/mozc_builder/work/android-ndk-r10e
+ENV ANDROID_NDK_HOME /home/mozc_builder/work/android-ndk-r12b
 ENV ANDROID_HOME /home/mozc_builder/work/android-sdk-linux
 ENV PATH $PATH:${ANDROID_HOME}/tools:${ANDROID_HOME}/platform-tools:${ANDROID_NDK_HOME}
 RUN echo y | android update sdk --all --force --no-ui --filter android-22
diff --git a/src/android/android.gyp b/src/android/android.gyp
index 1bf8234fb..80bd8a030 100644
--- a/src/android/android.gyp
+++ b/src/android/android.gyp
@@ -234,12 +234,13 @@
       'type': 'none',
       'variables': {
         'make_standalone_toolchain_commands': [
-          'bash',
-          '<(android_ndk_home)/build/tools/make-standalone-toolchain.sh',
-          '--toolchain=<(toolchain)',
-          '--stl=libcxx',
+          'python',
+          '<(android_ndk_home)/build/tools/make_standalone_toolchain.py',
+          '--force',
+          '--arch=<(android_arch)',
+          '--stl=libc++',
           '--install-dir=<(mozc_build_tools_dir)/ndk-standalone-toolchain/<(android_arch)',
-          '--platform=<(platform)',
+          '--api=<(ndk_target_api_level)',
         ],
         'make_standalone_toolchain_result': '<!(<(make_standalone_toolchain_commands))',
       },
diff --git a/src/android/android_env.gypi b/src/android/android_env.gypi
index b7be65609..47b14d8d5 100644
--- a/src/android/android_env.gypi
+++ b/src/android/android_env.gypi
@@ -83,88 +83,40 @@
         'font_dir': '<(third_party_dir)/noto_font',
       },
     }],
-    ['android_arch=="arm" and android_compiler=="gcc"', {
+    ['android_arch=="arm"', {
       'variables': {
         'abi': 'armeabi-v7a',
-        'toolchain': 'arm-linux-androideabi-4.9',
-        'platform': 'android-14',
+        'ndk_target_api_level': '14',
       },
     }],
-    ['android_arch=="arm" and android_compiler=="clang"', {
-      'variables': {
-        'abi': 'armeabi-v7a',
-        'toolchain': 'arm-linux-androideabi-clang3.5',
-        'platform': 'android-14',
-      },
-    }],
-    ['android_arch=="x86" and android_compiler=="gcc"', {
-      'variables': {
-        'abi': 'x86',
-        'toolchain': 'x86-4.9',
-        'platform': 'android-14',
-      },
-    }],
-    ['android_arch=="x86" and android_compiler=="clang"', {
+    ['android_arch=="x86"', {
       'variables': {
         'abi': 'x86',
-        'toolchain': 'x86-clang3.5',
-        'platform': 'android-14',
-      },
-    }],
-    ['android_arch=="mips" and android_compiler=="gcc"', {
-      'variables': {
-        'abi': 'mips',
-        'toolchain': 'mipsel-linux-android-4.9',
-        'platform': 'android-14',
+        'ndk_target_api_level': '14',
       },
     }],
-    ['android_arch=="mips" and android_compiler=="clang"', {
+    ['android_arch=="mips"', {
       'variables': {
         'abi': 'mips',
-        'toolchain': 'mipsel-linux-android-clang3.5',
-        'platform': 'android-14',
+        'ndk_target_api_level': '14',
       },
     }],
-    ['android_arch=="arm64" and android_compiler=="gcc"', {
+    ['android_arch=="arm64"', {
       'variables': {
         'abi': 'arm64-v8a',
-        'toolchain': 'aarch64-linux-android-4.9',
-        'platform': 'android-21',
+        'ndk_target_api_level': '21',
       },
     }],
-    ['android_arch=="arm64" and android_compiler=="clang"', {
-      'variables': {
-        'abi': 'arm64-v8a',
-        'toolchain': 'aarch64-linux-android-clang3.5',
-        'platform': 'android-21',
-      },
-    }],
-    ['android_arch=="x86_64" and android_compiler=="gcc"', {
-      'variables': {
-        'abi': 'x86_64',
-        'toolchain': 'x86_64-4.9',
-        'platform': 'android-21',
-      },
-    }],
-    ['android_arch=="x86_64" and android_compiler=="clang"', {
+    ['android_arch=="x86_64"', {
       'variables': {
         'abi': 'x86_64',
-        'toolchain': 'x86_64-clang3.5',
-        'platform': 'android-21',
-      },
-    }],
-    ['android_arch=="mips64" and android_compiler=="gcc"', {
-      'variables': {
-        'abi': 'mips64',
-        'toolchain': 'mips64el-linux-android-4.9',
-        'platform': 'android-21',
+        'ndk_target_api_level': '21',
       },
     }],
-    ['android_arch=="mips64" and android_compiler=="clang"', {
+    ['android_arch=="mips64"', {
       'variables': {
         'abi': 'mips64',
-        'toolchain': 'mips64el-linux-android-4.9',
-        'platform': 'android-21',
+        'ndk_target_api_level': '21',
       },
     }],
   ],
diff --git a/src/build_mozc.py b/src/build_mozc.py
index 75aa96ac2..ce13c2183 100644
--- a/src/build_mozc.py
+++ b/src/build_mozc.py
@@ -297,11 +297,6 @@ def ParseGypOptions(args):
                     default='arm',
                     help='[Android build only] Android architecture '
                     '(arm, x86, mips)')
-  parser.add_option('--android_compiler', dest='android_compiler',
-                    type='choice',
-                    choices=('gcc', 'clang'),
-                    default='gcc',
-                    help='[Android build only] Compiler')
   parser.add_option('--android_application_id', dest='android_application_id',
                     default='org.mozc.android.inputmethod.japanese',
                     help='[Android build only] Android\'s application id'
@@ -642,7 +637,6 @@ def GypMain(options, unused_args):
 
     gyp_options.extend(['-D', 'android_home=%s' % android_home])
     gyp_options.extend(['-D', 'android_arch=%s' % options.android_arch])
-    gyp_options.extend(['-D', 'android_compiler=%s' % options.android_compiler])
     gyp_options.extend(['-D', 'android_ndk_home=%s' % android_ndk_home])
     gyp_options.extend(['-D', 'android_application_id=%s' %
                         options.android_application_id])
diff --git a/src/data/version/mozc_version_template.bzl b/src/data/version/mozc_version_template.bzl
index a08988332..d03a920a9 100644
--- a/src/data/version/mozc_version_template.bzl
+++ b/src/data/version/mozc_version_template.bzl
@@ -30,7 +30,7 @@
 
 MAJOR=2
 MINOR=18
-BUILD=2598
+BUILD=2599
 REVISION=102
 # This version represents the version of Mozc IME engine (converter, predictor,
 # etc.).  This version info is included both in the Mozc server and in the Mozc
diff --git a/src/gyp/common.gypi b/src/gyp/common.gypi
index d78f4f872..dc0d6f743 100644
--- a/src/gyp/common.gypi
+++ b/src/gyp/common.gypi
@@ -115,15 +115,9 @@
         'compiler_host': 'clang',
         'compiler_host_version_int': 303,  # Clang 3.3 or higher
       }],
-      ['target_platform=="Android" and android_compiler=="clang"', {
+      ['target_platform=="Android"', {
         'compiler_target': 'clang',
-        'compiler_target_version_int': 305,  # Clang 3.5 or higher
-        'compiler_host': 'clang',
-        'compiler_host_version_int': 304,  # Clang 3.4 or higher
-      }],
-      ['target_platform=="Android" and android_compiler=="gcc"', {
-        'compiler_target': 'gcc',
-        'compiler_target_version_int': 409,  # GCC 4.9 or higher
+        'compiler_target_version_int': 308,  # Clang 3.8 or higher
         'compiler_host': 'clang',
         'compiler_host_version_int': 304,  # Clang 3.4 or higher
       }],
@@ -312,6 +306,7 @@
                 ],
                 'ldflags': [
                   '-llog',
+                  '-static-libstdc++',
                 ],
                 'conditions': [
                   ['android_arch=="arm"', {
@@ -494,25 +489,13 @@
             'toolchain_prefix': 'mips64el-linux-android',
           },
         }],
-        ['android_compiler=="gcc"', {
-          'variables': {
-            'c_compiler': 'gcc',
-            'cxx_compiler': 'g++',
-          }
-        }],
-        ['android_compiler=="clang"', {
-          'variables': {
-            'c_compiler': 'clang',
-            'cxx_compiler': 'clang++',
-          }
-        }],
       ],
       # To use clang only CC and CXX should point clang directly.
       # c.f., https://android.googlesource.com/platform/ndk/+/tools_ndk_r9d/docs/text/STANDALONE-TOOLCHAIN.text
       'make_global_settings': [
         ['AR', '<(ndk_bin_dir)/<(toolchain_prefix)-ar'],
-        ['CC', '<(ndk_bin_dir)/<(toolchain_prefix)-<(c_compiler)'],
-        ['CXX', '<(ndk_bin_dir)/<(toolchain_prefix)-<(cxx_compiler)'],
+        ['CC', '<(ndk_bin_dir)/<(toolchain_prefix)-clang'],
+        ['CXX', '<(ndk_bin_dir)/<(toolchain_prefix)-clang++'],
         ['LD', '<(ndk_bin_dir)/<(toolchain_prefix)-ld'],
         ['NM', '<(ndk_bin_dir)/<(toolchain_prefix)-nm'],
         ['READELF', '<(ndk_bin_dir)/<(toolchain_prefix)-readelf'],