**do not** add the actual output of **any** command to the repository.
ever. this is really important. even if it is a human-readable file
rather than a binary object file.
+ it is very common to add pdfs (the result of running latex2pdf) or configure.in (the result of running automake), they are an absolute nuisance and interfere hugely with git diffs, as well as waste hard disk space *and* network bandwidth. don't do it.
* if the command needed to create any given autogenerated output is not
currently in the list of known project dependencies, first consult on
the list if it is okay to make that command become a hard dependency of