[Rd] libcurl support and curlGetHeaders warning message in R CMD check
skyebend at skyeome.net
Tue Jan 27 22:09:31 CET 2015
Dear R devel,
Is libcurl support required to run R.devel, or is it optional?
I'm compiling R.devel on an older Debian machine that only has libcurl
The R news file says
Sun, 25 Jan 2015
CHANGES IN R-devel NEW FEATURES
Optional use of ‘libcurl’ (version 7.28.0 from Oct 2012 or later)
for Internet access (including on Windows):
CHANGES IN R-devel UTILITIES
‘R CMD check --as-cran’ checks existence and accessibility of URLs
in the ‘DESCRIPTION’ file and in the help files.
Which seems to suggest libcurl support is optional. The build process
seems to correctly detect that I have an old version of libcurl
checking if libcurl version >= 7.28.0... no
But when I try to build any packages with R.devel (for pre-release
testing) I get lots and lots of Notes/errors like:
Found the following (possibly) invalid URLs:
Message: curlGetHeaders is not supported on this platform
Maybe this url check should first verify that libcurl is available?
If it is the case that libcurl is required for R CMD check --as-cran,
I'll try to follow up with R debian for how to get appropriate version.
(seems like libcurl 7.28 is not yet included in a stable Debian release?)
Thanks for your help,
More information about the R-devel