command : sh autogen.sh
output:
autoreconf: Entering directory `.'
autoreconf: running: aclocal --force -I m4
autoreconf: running: libtoolize --copy --force
.ibtoolize: AC_CONFIG_MACRO_DIR([m4]) conflicts with ACLOCAL_AMFLAGS=-I m4
autoreconf: libtoolize failed with exit status: 1
the OS is debian 7 ,the output of "uname -a " is Linux sipp 3.2.0-4-686-pae #1 SMP Debian 3.2.63-2 i686 GNU/Linux