Sounds like you’re using MinGW. I’m a Code::Blocks user so not the same UI.
For mine, I had to add some files to the “project” (the list over on the left side) to include them under the build button.
Then I hit the gear-looking button. It compiles. Takes about 15 minutes on my laptop.
If there’s a dealbreaker, it’ll stop there and tell you in Unhappy Red Text
. Sometimes the message is helpful. Sometimes it isn’t. Asking on the IRC is a good place for dealing with compile-time problems.
(In general, if you edit a .cpp dile after compiling, it’ll only need to recompile that file. If you edit a .h file, that affects Everything so it needs to recompile everything. Updating the codebase (after a git pull upstream master, see HowToContribute) needs a full recompile too.)