Paul Garlick writes: > ii) deleting object files, to save disk space, under > 'platforms/linux64GccDPInt32Opt/src' should also be fine, with the > proviso that the re-compilation process should be checked before > committing.  There is an example procedure, albeit for an earlier > version, given at https://openfoamwiki.net/index.php/How_to_add_tempera > ture_to_icoFoam .  A slightly modified procedure should work for > version 4.1. > > Dave, can you try this on your patched version?  'wmake' should re- > generate the object files that are needed and produce a new executable. >  Check that there are no instances of errors such as 'file not found' I successfully rebuilt pisoFoam following the example in the current documentation. Is that good enough? Here's a modified patch to change the comment and avoid an empty directory.