http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51727
Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |simonb at google dot com --- Comment #1 from Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> 2012-10-05 18:16:41 UTC --- Also reported here: http://gcc.gnu.org/ml/gcc/2012-10/msg00075.html this is the source of recompilation cascades sometimes seen in CP2K as well. I'm wondering if a very naive hack like sorting .mod content (like in cat old.mod 1 | sort -s > new.mod) could not paper over this problem sufficiently well to make it irrelevant in reality.