How to fix: "No Space left on device" on /tmp

I'm facing an issue where my program won't compile due to no device space in the /tmp folder.After a little examine and deleting all files on tmp it stills shows me the same error:

after system reboot the problem solves but it is back after few compiles, is there any solution to this problem that do not include restarting my computer every 10 min?

p.s this is what the terminal shows on 'df /tmp' command:

and this is what 'gparted' command gets me:

thanks in advance for all advises! :)