R CMD check warning about compiler warning flags
On 20/12/2017 6:52 PM, Duncan Murdoch wrote:
On 20/12/2017 5:48 PM, Hadley Wickham wrote:
On Wed, Dec 20, 2017 at 4:26 PM, Prof Brian Ripley <ripley at stats.ox.ac.uk> wrote:
On 20/12/2017 17:42, Winston Chang wrote:
On recent builds of R-devel, R CMD check gives a WARNING when some
compiler warning flags are detected, such as -Werror, because they are
non-portable. This appears to have been added in this commit:
https://github.com/wch/r-source/commit/2e80059
That is not the canonical R sources. And your description seems wrong: there is now an _optional_ check controlled by an environment variable, primarily for CRAN checks.
Are the canonical R sources made available in such a way that one can link to them?
Yes, the sources are available. To link to revision 73909 of R on the trunk branch (which I think is the one referred to above), use https://svn.r-project.org/R/trunk/?r=73909 I'm not sure if there's an easy way to see the diff between that and 73908 (which is what the github link showed).
After checking a bit online, it appears there are projects WebSVN, USVN and ViewVC that should do this. I don't know if anyone has set up views of the R repository with any of those. I've never used them, I just use local tools. In the past I used Windows-only TortoiseSVN (and it is still one of the most attractive features of Windows); now I use RStudio or command line svn. As you know, RStudio's interface is somewhat limited, and as far as I know it can't display features of remote repositories. I also don't know if
there's a way to show the diff between commit N and N-1 in github if I only know N.
I still don't know this. Duncan Murdoch