[Rd] Problem with texi2pdf(..,clean=TRUE)

[cstrato]

Dear all,

To create a *.pdf file from a *.Rnw file I do:

       olddir <- getwd();
       setwd(outdir);

       tryCatch({Sweave("QAReport.Rnw");
                 tools::texi2pdf("QAReport.tex", clean=TRUE)
                },
                finally = setwd(olddir)
               );

This works fine, however 'clean=TRUE' does only work when:
      outdir <- "Test/inst/doc/"
but does not remove the files *.aux, *.log, *.toc when:
      outdir <- "Test/"

Why does function texi2pdf() require the directory structure for 
vignettes for the deletion of interim files?

(The help file?texi2pdf does not mention that this structure is necessary.)

Best regards
Christian
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