Hi, I am having problem with compilation of libvirt, i has saw one post about this in the maillist, but it don't resolved the problem. The detail of erros is: storage_conf.c: In function 'virStorageSize': storage_conf.c:627: error: 'ULLONG_MAX' undeclared (first use in this function) storage_conf.c:627: error: (Each undeclared identifier is reported only once storage_conf.c:627: error: for each function it appears in.) make[2]: *** [libvirt_la-storage_conf.lo] Error 1 make[2]: se sale del directorio `/home/revartj/libvirt/libvirt-0.4.4/src' make[1]: *** [all-recursive] Error 1 make[1]: se sale del directorio `/home/revartj/libvirt/libvirt-0.4.4' make: *** [all] Error 2 Any information about SO: EREBO:/home/revartj/libvirt/libvirt-0.4.4# *uname -a* Linux EREBO 2.6.18-6-xen-686 #1 SMP Sat May 24 14:16:03 UTC 2008 i686 GNU/Linux EREBO:/home/revartj/libvirt/libvirt-0.4.4# *gcc -v* Using built-in specs. Target: i486-linux-gnu Configured with: ../src/configure -v --enable-languages=c,c++,fortran,objc,obj-c++,treelang --prefix=/usr --enable-shared --with-system-zlib --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --enable-nls --program-suffix=-4.1 --enable-__cxa_atexit --enable-clocale=gnu --enable-libstdcxx-debug --enable-mpfr --with-tune=i686 --enable-checking=release i486-linux-gnu Thread model: posix gcc version 4.1.2 20061115 (prerelease) (Debian 4.1.1-21) Someboy know how i can resolved this error. Thank everybody by advance. revartj