Hi Has any one successfully compiled jp-icalendar on Fedora? if you you have binary rpm, please share. My process ended with error. not sure how to fix it. here is the end part of compilation message. thanks for info Y ./libical/src/libical/.libs/libical.so: undefined reference to `pthread_key_create' ./libical/src/libical/.libs/libical.so: undefined reference to `pthread_once' ./libical/src/libical/.libs/libical.so: undefined reference to `pthread_getspecific' ./libical/src/libical/.libs/libical.so: undefined reference to `pthread_setspecific' collect2: ld returned 1 exit status make[2]: *** [icalendar-import] Error 1 make[2]: Leaving directory `/temp/jp-icalendar-0.04/trunk' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/temp/jp-icalendar-0.04/trunk' make: *** [all] Error 2