I installed EP (http://codeblocks.codecutter.org/) in order to use fltk for stroustrup's principles and practice. I'm running into strange roadblocks for everything I try to do. Weird compiler-time errors that show up in seemingly-random lines of standard library headers. Even when I'm only trying to compile the default fltk template project.
The code::blocks I already had installed was 12.11. I did not uninstall it. I just installed EP in addition to it. It was in a different folder of Program Files, so I didn't think there would be anything conflicting going on.
Also, whenever I start up 12.11 now, I get this "compiler auto-detection" prompt where it gives me a list of compilers and tells me which are invalid, which includes most of them except for things like GCC. I used to never get this.