:~/complie/libmpd$ ./autogen.sh running aclocal running autoheader running libtoolize You should update your `aclocal.m4' by running aclocal. running automake src/Makefile.am:7: Libtool library used but `LIBTOOL' is undefined src/Makefile.am:7: The usual way to define `LIBTOOL' is to add `AC_PROG_LIBTOOL' src/Makefile.am:7: to `configure.ac' and run `aclocal' and `autoconf' again. src/Makefile.am:7: If `AC_PROG_LIBTOOL' is in `configure.ac', make sure src/Makefile.am:7: its definition is in aclocal's search path.