I need to include a letter in my report, and I'm doing this using the
pdfpages package. I'd like it so that when my report,
report.tex goes to compile and include
letter.pdf, it first compile
letter.tex and then, after having compiled
letter.pdf into the report. I've thought of writing a script to do this, but the solution needs to be cross-platform (the report is being worked on by five people using both Linux and Windows).