[Rd] Small inaccuracy in the Writing R Extensions manual

[Martin Maechler]

>>>>> Duncan Murdoch <murdoch.duncan at gmail.com>
>>>>>     on Tue, 12 Jan 2016 07:32:05 -0500 writes:

    > On 11/01/2016 11:59 PM, Berwin A Turlach wrote:
    >> G'day all,
    >> 
    >> In Chapter 1.4 (Writing package vignettes) the Writing R
    >> Extensions manual states:
    >> 
    >> By default @code{R CMD build} will run @code{Sweave} on
    >> all Sweave vignette source files in @file{vignettes}.  If
    >> @file{Makefile} is found in the vignette source
    >> directory, then @code{R CMD build} will try to run
    >> @command{make} after the @code{Sweave} runs, otherwise
    >> @code{texi2pdf} is run on each @file{.tex} file produced.
    >> 
    >> This does not seem to be quite correct as stated.  'R CMD
    >> build' seems to run make only if there was a file in the
    >> directory vignettes that Sweave successfully processed.
    >> If the directory vignettes contains a Makefile and
    >> subdirectories in which the actual vignettes are, 'R CMD
    >> build' does not run make.
    >> 

    > I think it is behaving as documented: it says it will run
    > make after Sweave, so if Sweave never ran, neither would
    > make.  But perhaps your suggestion is good: it should run
    > make whether or not Sweave (or some non-Sweave vignette
    > builder) was run.

    > Duncan Murdoch

I agree.  These were my thoughts too.
Martin