fortc: 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

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 Debian possible default full paths are:

/usr/bin/fortc - from package: libxgks-dev

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