Hi I'm not having much luck today! Running Suse Linux 8.2, R 2.0.0, trying to install RCurl_0.5-1.tar.gz. Perhaps there's an issue with my C compiler, but I got some errors: IAHC-LINUX03:/usr/users/mwatson # R CMD INSTALL RCurl_0.5-1.tar.gz * Installing *source* package 'RCurl' ... checking for curl-config... /usr/bin/curl-config checking for gcc... gcc checking for C compiler default output... a.out checking whether the C compiler works... yes checking whether we are cross compiling... no checking for suffix of executables... checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether gcc accepts -g... yes checking for gcc option to accept ANSI C... none needed checking how to run the C preprocessor... gcc -E No libidn field in version structure. configure: creating ./config.status config.status: creating src/Makevars ** libs gcc -I/usr/lib/R/include -Wall -I/usr/include -I/usr/local/include -I/opt/gnome/include -D__NO_MATH_INLINES -mieee-fp -fPIC -c curl.c -o curl.o curl.c: In function `R_curl_easy_init': curl.c:43: error: `CURLOPT_HTTPAUTH' undeclared (first use in this function) curl.c:43: error: (Each undeclared identifier is reported only once curl.c:43: error: for each function it appears in.) curl.c:43: error: `CURLAUTH_ANY' undeclared (first use in this function) curl.c: In function `R_curl_easy_setopt': curl.c:153: warning: implicit declaration of function `curl_easy_strerror' curl.c:154: warning: format argument is not a pointer (arg 7) curl.c: In function `RCurlVersionInfoToR': curl.c:683: error: structure has no member named `ares' curl.c:683: error: structure has no member named `ares' curl.c:684: error: structure has no member named `ares_num' make: *** [curl.o] Error 1 ERROR: compilation failed for package 'RCurl' Any ideas? Thanks Mick