makeinfo: command not found

Have You tried accessing the binary with the full path?

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/makeinfo - from package: texinfo

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

On Debian possible default full paths are:

/usr/bin/makeinfo - from package: texinfo

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