Built files left after make clean

[Rafael Laboissiere]

This is a minor issue, but I came across it when building the Debian
packages for Octave.  A couple of files are left after "make "clean" and
I have to delete them by hand (i.e. in debian/rules) when building the
package:

    libcruft/libcruft.so
    libcruft/*/Makefile
    install.octave
    scripts/gethelp
    libcruft/misc/*.d
    scripts/autom4te.cache
    config.log
    Makefrag.f77
    src/PKG_ADD
    src/gplot.cc
                
(some of those may be 2.9-specific.)

Could the clean targets of the relevant Makefile.in files be changed to
remove them?

-- 
Rafael