glx-make-current: 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/lib64/piglit/bin/glx-make-current - from package: piglit

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

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