CURLOPT_HTTPAUTH
not being defined when the C code is being compiled.
What's the problem?
url.c: In function `RCurlVersionInfoToR': curl.c:613: structure has no member named `libidn' curl.c:613: structure has no member named `libidn'
http://www.omegahat.org/RCurlto
http://www.omegahat.org/RCurl/That works for me.
curl-config --featureIf ssl doesn't appear there, you don't have support for it. You should reinstall curl, having first installed SSL (e.g. openssl).