[horde] install fileinfo problem

[=?big5?b?sWmofaTl?=]

Hi all:
when install fileinfo package,i have such error messgae:

[root at webmail root]# pear install fileinfo
downloading Fileinfo-0.1.tgz ...
...done: 5,372 bytes
3 source files, building
running: phpize
autoconf: Undefined macros:
configure.in:76:AC_PROG_LIBTOOL
`phpize' failed

I'd like to know is that autoconf or libtool problem or pear ?


My env:
PHP 4.3.3 (cli)
PEAR-1.2.1
Autoconf version 2.13
ltmain.sh (GNU libtool) 1.4.3
OS :RH 7.2 with kernel 2.4.7-10