step1、install Xcode

step2、install xcpkg

step3、update xcpkg-formula-repository

xcpkg update

step4、build and install gnu-barcode

xcpkg install gnu-barcode

xcpkg formula view gnu-barcode

{{ formula }}

if the formula of gnu-barcode dosn't meet your needs, you can edit it ⤵︎

xcpkg formula edit gnu-barcode

after editing, you may want to rebuild this package ⤵︎

xcpkg install gnu-barcode