Well, getting "weird results" is one particularly strong hint that the incremental build is not, in fact, correct. Weird linker errors, or better yet, weird res

Well, getting "weird results" is one particularly strong hint that the incremental build is not, in fact, correct. Weird linker errors, or better yet, weird resulting binaries. "I've just changed this routine and built the app, but when I run it the behaviour is the same?.. <attaches gdb> WTF, it has the old version of the routine! kill, q, make clean && make && gdb run, ah, now it works. Apparently, computers are haunted by the angry ghosts".