pth-config: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On CentOS possible default full paths are:

/usr/bin/pth-config - from package: pth-devel

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/pth-config - from package: libpth-dev

You may install the required package with command apt-get install {package}

Error in other languages:
pth-config: bevel nie gevind nie
pth-config: comandă negăsită
pth-config: comando não encontrado
pth-config: commande introuvable
pth-config: command not found
pth-config: käsku ei ole
pth-config: không tìm thấy lệnh
pth-config: komanda nerasta
pth-config: Kommando nicht gefunden.
pth-config: kommandot finns inte
pth-config: komut yok
pth-config: nie znaleziono polecenia
pth-config: níor aimsíodh an t-ordú
pth-config: no se encontró la orden
pth-config: no s'ha trobat l'ordre
pth-config: opdracht niet gevonden
pth-config: parancs nem található
pth-config: perintah tidak ditemukan
pth-config: príkaz nenájdený
pth-config: příkaz nenalezen
pth-config: команда не найдена
pth-config: командата не е открита
pth-config: 命令找不到
pth-config: コマンドが見つかりません