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
version 7.21.0
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
> capabilities('libcurl')
libcurl
FALSE
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:
URL: http://statnet.org/
From: DESCRIPTION
Status: Error
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,
best,
-skye
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