I have a Visual Studio project with about 60 C++ source files. I can do a build, and it completes without errors. But if I immediately hit F7 again, it always re-compiles about
Had the same problem. Solved by:
-delete output folder (obj,exe,all files)
-run cygwin
-cd project folder
-run "touch *", which reset file modify date/time
-build and enjoy problem fixed