[OMPI devel] make dependency problem?

[Eugene Loh]

I was playing with OMPI and I noticed that if I modified btl.h, bml_r2.c 
did not automatically get rebuilt, even though it includes btl.h.  This 
caused me all sorts of unnecessary debugging troubles.  In the end, just 
touching bml_r2.c was enough... it caused bml_r2.c to be recompiled and 
to see the changes in btl.h.

So, question:
Given that bml_rc.2 includes btl.h, wouldn't the proper make 
dependencies cause bml_rc.c to be recompiled whenever btl.h is touched?

Again, it appears that this is not happening and that strikes me as a 
problem -- for someone out there to fix.  :^)