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source/_posts/2022/building-mozc-for-macos.md

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+---
+title: Building mozc for macOS
+date: 2022-05-20T00:00:00
+---
+
+[Mozc](https://github.com/google/mozc) is an open-source counterpart of Google Japanese Input, a Japanese input method developed by Google.
+
+## Setup build environment
+
+```
+$ sw_vers
+ProductName:	macOS
+ProductVersion:	12.2.1
+BuildVersion:	21D62
+
+$ xcodebuild -version
+Xcode 13.3
+Build version 13E113
+```
+
+```bash
+# Install dependencies
+brew install python3 ninja qt@5
+
+# Clone the repository
+git clone https://github.com/google/mozc -b master --single-branch --recursive
+```
+
+## Build mozc
+
+```bash
+# Move to the source directory
+cd mozc/src
+
+# Expose necessary variable
+MAC_SDK=$(xcodebuild -showsdks 2>/dev/null | grep '\tmacOS' | awk '{print $2}')
+MAC_DEPLOYMENT_TARGET=$(sw_vers -productVersion | sed -E 's/\.[^.]+$//')
+export GYP_DEFINES="mac_sdk=${MAC_SDK} mac_deployment_target=${MAC_DEPLOYMENT_TARGET}"
+
+# Apply hotfix to third party libs
+cd third_party
+git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git
+export PATH="$PATH:$PWD/depot_tools"
+python3 -m pip install six
+cd gyp
+git apply ../../gyp/gyp.patch
+cd ../..
+
+# Configure
+python3 build_mozc.py gyp --qtdir=/usr/local/opt/qt@5
+
+# Build main converter and GUI tools
+python3 build_mozc.py build -c Release mac/mac.gyp:GoogleJapaneseInput gui/gui.gyp:config_dialog_main
+
+# Install
+sudo cp -r out_mac/Release/Mozc.app /Library/Input\ Methods/
+sudo cp mac/installer/LaunchAgents/org.mozc.inputmethod.Japanese.Converter.plist /Library/LaunchAgents
+sudo cp mac/installer/LaunchAgents/org.mozc.inputmethod.Japanese.Renderer.plist /Library/LaunchAgents
+
+# Clean up the tree
+python3 build_mozc.py clean
+
+reboot
+```