[Libmesh-devel] Use -include in Makefiles?

[John P. <jwp...@gm...>]

So currently in libmesh you see this:

$ make clean
Makefile:66: .depend: No such file or directory
Makefile:96: .depend: No such file or directory
Makefile:69: .depend: No such file or directory
Makefile:65: .depend: No such file or directory
...

which is ridiculous.  The warnings go away if we change 'include .depend'
to '-include .depend'.

This also suppresses errors if .depend cannot be remade for some reason*
but I'd argue that case is probably rare.

Any thoughts?  I hope we haven't already discussed this and I simply forgot
about it...

* http://www.gnu.org/software/make/manual/make.html#Include

-- 
John