libMesh/libmesh — pull request #415 by dschwen (2014-11-22 19:18:00+00:00)
Title: Add configure option to disable all timestamps in libMesh

As discussed at idaholab/moose#4278 disabling the use of ```__TIME__``` and ```__DATE__``` can greatly improve the efficacy of _ccache_ (beyond the effects of ```CCACHE_SLOPPINESS=time_macros```!).
In this PR I add a configure option ```--disable-timestamps```, which replaces the occurrence of all dynamic timestamps (actually those were only found in ```libmesh_common.h``` but which is includes _everywhere_) with dummy strings.