I'm trying to play with the new ESX driver  on a rhel5-u1 x86_64 but I get this: checking for libcurl libraries >= 7.18.0... configure: error: libcurl >= 7.18.0 is required for the ESX driver according to http://curl.haxx.se/download.html there is no rpm for rhel x86_64 so I built it and tried: export LIBCURL_LIBS="-L/usr/local/lib -lcurl -L/usr/kerberos/lib64" export LIBCURL_CFLAGS="-I/usr/local/include" but configure didn't care about it am I doing something wrong here?