Hello,

I am using ob-C.el to work with a c++ library (capd::dynsys). The
current behaviour creates a temporary src and bin file in
`org-babel-temporary-directory'. There is currently no option to have
these files named and put somewhere else.

This behaviour is not quite right, in my opinion. I would like to be
able to compile an executable and then be able to call this same
executable without needing to recompile from source.

Attached is a patch that uses the :file header to allow the naming of
the source and compiled binary files.

A test is included, too. All tests pass with this patch applied to HEAD
(except the expected failures, of course).

Comments?

Leo

ps: It might be better to use a custom header for this purpose,
something like :bin-file. I am open to suggestions.