my compilations in c / c ++ works like the example on <http://ssalewski.de/gtkprogramming.html#_installation_of_gtk>
linux 34 bits gkt3 3.24.23.1 vte3 0.62.1 update 25/09/2020 nimble install gintro@#head or nimble install gintro I'm giving you the worry excuse me ps: it's not by the minute ;)
