[R-pkg-devel] help using \Sexpr in .Rd documentaiton file results in error in windows

[Jairo Hidalgo Migueles]

Dear list,

I tried to write a dynamic help file following the Writing R Extensions
manual (section 2.12, "Dynamic pages"). When using the \Sexpr macro, the
package does not longer pass the R CMD CHECK. I get the following error:

── R CMD build ─────────────────────────────
✔  checking for file 'C:\R\pkgs\GGIR/DESCRIPTION' ...
─  preparing 'GGIR': (8.5s)
✔  checking DESCRIPTION meta-information ...
─  cleaning src
─  installing the package to process help pages (427ms)
─  building the PDF package manual (13.9s)
   Warning in system2(..., stdout = FALSE, stderr = FALSE) :
     '"makeindex"' not found
   Error in texi2dvi(file = file, pdf = TRUE, clean = clean, quiet = quiet,
 :
     unable to run 'makeindex' on 'Rd2.idx'
   Warning in system2(..., stdout = FALSE, stderr = FALSE) :
     '"makeindex"' not found
   Error in texi2dvi(file = file, pdf = TRUE, clean = clean, quiet = quiet,
 :
     unable to run 'makeindex' on 'Rd2.idx'
   Error in running tools::texi2pdf()
Error in proc$get_built_file() : Build process failed

It seems there is something wrong when building the package manual, but
after some attempts, I have not been able to fix this. Any advice is
welcome.

Here an example of the \Sexpr usage in the .Rd file, consider "argument"
the name of a parameter to function "fn" in package "pkg":

\usage{
fn(argument= \Sexpr{format(formals(pkg::fn)[[" argument "]])})
}

Best,
Jairo

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