step1、install Xcode

step2、install xcpkg

step3、update xcpkg-formula-repository

xcpkg update

step4、build and install utf8.h

xcpkg install utf8.h

xcpkg formula view utf8.h

{{ formula }}

if the formula of utf8.h dosn't meet your needs, you can edit it ⤵︎

xcpkg formula edit utf8.h

after editing, you may want to rebuild this package ⤵︎

xcpkg install utf8.h