Updated patch attached.

2015-09-14 16:59 GMT-03:00 Vicente Vera <vicentemvp@gmail.com>:
> Hello Ricardo,
>
> Both the code and the comment related to the check phase were changed.
> Indeed, the comment was pretty much unreadable. Hope the new one is
> better.
>
> New patch attached.
>
> 2015-09-14 8:10 GMT-03:00 Ricardo Wurmus <ricardo.wurmus@mdc-berlin.de>:
>>
>>> From 7e291c7f87498368be556941f6eb7315f94a7c74 Mon Sep 17 00:00:00 2001
>>> From: Vicente Vera Parra <vicentemvp@gmail.com>
>>> Date: Sun, 13 Sep 2015 13:17:39 -0300
>>> Subject: [PATCH 09/19] gnu: Add r-markdown.
>>
>>> * gnu/packages/statistics.scm (r-markdown): New variable.
>>
>> [...]
>>
>>> +    ;; Skip check phase because the tests require knitr to be
>>> +    ;; installed. Since it won't (markdown is a dependency of the knitr
>>> +    ;; package), installation will fail.
>>> +    (arguments
>>> +     `(#:phases
>>> +       (modify-phases %standard-phases
>>> +         (delete 'check))))
>>
>> Two things: 1) the comment isn’t very clear.  “Since it won’t” what?  Maybe
>> you can rephrase.  2) Instead of deleting the “check” phase just write
>>
>>     (arguments `(#:tests? #f))
>>
>>> +    (propagated-inputs
>>> +     `(("r-mime" ,r-mime)))
>>> +    (home-page "https://github.com/rstudio/markdown")
>>> +    (synopsis "'Markdown' Rendering for R")
>>
>> Quoting “Markdown” looks odd.  How about just
>>
>>     “Markdown rendering library for R”
>>
>>> +    (description
>>> +     "Provides R bindings to the 'Sundown' 'Markdown' rendering
>>> +library (https://github.com/vmg/sundown). 'Markdown' is a plain-text
>>> +formatting syntax that can be converted to 'XHTML' or other formats.
>>> +See http://en.wikipedia.org/wiki/Markdown for more information about
>>> +'Markdown'.")
>>
>> The quoting looks very odd.  Does this mean that “Sundown” must be
>> available at runtime in order to use the “r-markdown” package?  If this
>> is so, shouldn’t a “sundown” package be among the inputs of this
>> package?
>>
>>> +    (license license:gpl2)))
>>
>> This appears to be correct.  The license headers of the files in the “R”
>> directory only explicitly mention “version 2”, there is no “or later”
>> clause.  I just wonder what this means for libraries using
>> “r-markdown”, such as “r-knitr”, which according to your next patch is
>> supposedly released under “GPLv3+”.  IIUC this cannot be the case.
>>
>> ~~ Ricardo