Missing dependencies?

[Jerry Quinn]

Is there a simple way to make the library rebuild if you touch a
header/tcc file?  It seems like this doesn't work correctly right
now.  For example, if I make a change to include/bits/locale_facets.h
and make install, the appropriate change doesn't show up in the
installed library.  But if I make clean first, it works fine.

It's a bit slow to have to clean and rebuild the library each time I
make a change.

Thanks,
Jerry Quinn