i want to install iCs but i cant build “autotools” file and this massage appear in the terminal:

autoreconf -i
libtoolize: Consider adding `AC_CONFIG_MACRO_DIR([m4])’ to configure.ac and
libtoolize: rerunning libtoolize, to keep the correct libtool macros in-tree.
libtoolize: Consider adding `-I m4? to ACLOCAL_AMFLAGS in Makefile.am.
libtoolize: `AC_PROG_RANLIB’ is rendered obsolete by `LT_INIT’

can anyone help me?