How do you give a file permission to execute?

[Giscardo]

I'm trying to install a library under Mandrake 8.0. The instructions say that I must "give execute permission to this file" before i can run it. The file is called ./install.gcc. How do i give it execute permission?

[hostile_apostle]

"chmod +x install.gcc" while you're in it's directory

or

Browse to it > right click on it > properties > permissions > check/click execute

[Giscardo]

muchas gracias