- macOS Catalina(10.15) + Xcode11 だと /usr/include が無い -- https://qiita.com/yoya/items/c0b26cba3c040c581643 - macOS 10.15 CatalinaとXcode 11で/usr/includeが見つからない問題 -- https://qiita.com/imbsky/items/da709a514dded95b8575 export SDKROOT="$(xcrun --sdk macosx --show-sdk-path)" |