Hi Ihor,

On Sat, 5 Aug 2023 at 04:23, Ihor Radchenko <yantar92@posteo.net> wrote:
> First, minor one: please put two spaces between sentences in the commit
> message. It is our convention.
> `file-name-concat' is only available since Emacs 28.
> Please use `org-file-name-concat'.

Thanks for the feedback! I'm attaching a new version of the patch that
improves the commit message and avoids the use of file-name-concat.

> The PROCESS argument can, for example, be `org-latex-pdf-process', which
> promises that "%f in the command will be replaced by the relative file
> name" (see the docstring).

The patch now converts the source to a relative path if it is
absolute. Note that, according to the documentation of
file-relative-name, the path will still be absolute on Microsoft
Windows if the source and the current directory have different drive
letters; this is probably unavoidable. I have also updated the
docstring to clarify which paths are supposed to be relative and which
are absolute.

By the way, I forgot to mention that I ran into this bug while testing
tecosaur's latex-preview patch set on macOS. When running
org-latex-export-to-pdf on an Org file in ~/Dropbox, I got a warning
message about the preamble precompilation failing because it couldn't
find a temporary .tex file in /var. With this patch applied, the PDF
export completes without warnings.

Regards,
Roshan