2.4. Cleaning Up After a Build

When using SCons, it is unnecessary to add special commands or target names to clean up after a build. Instead, you simply use the -c or --clean option when you invoke SCons, and SCons removes the appropriate built files. So if we build our example above and then invoke scons -c afterwards, the output on POSIX looks like:


      % scons
      scons: Reading SConscript files ...
      scons: done reading SConscript files.
      scons: Building targets ...
      cc -o hello.o -c hello.c
      cc -o hello hello.o
      scons: done building targets.
      % scons -c
      scons: Reading SConscript files ...
      scons: done reading SConscript files.
      scons: Cleaning targets ...
      Removed hello.o
      Removed hello
      scons: done cleaning targets.
   

And the output on Windows looks like:


      C:\>scons
      scons: Reading SConscript files ...
      scons: done reading SConscript files.
      scons: Building targets ...
      cl /Fohello.obj /c hello.c /nologo
      link /nologo /OUT:hello.exe hello.obj
      scons: done building targets.
      C:\>scons -c
      scons: Reading SConscript files ...
      scons: done reading SConscript files.
      scons: Cleaning targets ...
      Removed hello.obj
      Removed hello.exe
      scons: done cleaning targets.
   

Notice that SCons changes its output to tell you that it is Cleaning targets ... and done cleaning targets.