Generate PKG_CONFIG_PATH from HomeBrew

gistfile1.txt

#!/bin/bash

for package in $(brew list)
do
    # path=$(brew --cellar $package)
    path="/usr/local/Cellar/$package"
    
    # only the first match.
    pkgdir=$(find $path -mindepth 1 -type d -name "pkgconfig" -print -quit 2> /dev/null)
    
    if [[ "$pkgdir" && -d "$pkgdir" ]]
    then
        PKG_CONFIG_PATH="$pkgdir:$PKG_CONFIG_PATH"
    fi
done

echo $PKG_CONFIG_PATH