Problems installing openwsman

Hi,
I'm a newbie in Linux and I strongly require to install and run openwsman on linux,
I tried everything but when I try to build the files from a tar package I recieve following error which i can't resolve. Can anybody help please?

Info:

OS : Linux fedora core 9 running kernel version 2.6.25
Machine : VMWare Virtual workstation
openwsman 2.0

Error Message:

gcc -DHAVE_CONFIG_H -I. -I../.. -I../.. -I../../include -I/usr/include/libxml2 -g -O2 -Wall -Wstrict-prototypes -Wmissing-declarations -Wmissing-prototypes -Wnested-externs -Wpointer-arith -Wunused -Werror -DPACKAGE_PLUGIN_DIR=\"/usr/local/lib/openwsman/plugins\" -g -O2 -Wall -Wstrict-prototypes-Wmissing-declarations -Wmissing-prototypes -Wnested-externs -Wpointer-arith -Wunused -Werror -MT wsman-curl-client-transport.lo -MD -MP -MF .deps/wsman-curl-client-transport.Tpo -c wsman-curl-client-transport.c -fPIC -DPIC -o .libs/wsman-curl-client-transport.o
cc1: warnings being treated as errors
In function 'init_curl_transport',
inlined from 'wsmc_handler' at wsman-curl-client-transport.c:357:
wsman-curl-client-transport.c:300: error: call to '_curl_easy_setopt_err_cb_data' declared with attribute warning: curl_easy_setopt expects a private data pointer as argument for this option
make[3]: *** [wsman-curl-client-transport.lo] Error 1