pear port install problem

[Riccardo Giuntoli]

Hi there, today i've got a problem in the installation of port
pear-1.4.6 situated in /usr/ports/devel/pear.

# make install clean
===>  Extracting for pear-1.4.6
=> MD5 Checksum OK for pear-1.4.6.tar.bz2.
=> SHA256 Checksum OK for pear-1.4.6.tar.bz2.
===>  Patching for pear-1.4.6
===>  Applying FreeBSD patches for pear-1.4.6
===>  Configuring for pear-1.4.6
===>  Installing for pear-1.4.6
===>   pear-1.4.6 depends on file: /usr/local/include/php/main/php.h - found
===>   pear-1.4.6 depends on file: /usr/local/lib/php/20050922/pcre.so - found
===>   pear-1.4.6 depends on file: /usr/local/lib/php/20050922/xml.so - found
===>   Generating temporary packing list
===>  Checking if devel/pear already installed
mkdir failed:
mkdir failed: /
Unable to create Binaries directory /usr/local/bin.
Run this script as root or pick another location.

# id
uid=0(root) gid=0(wheel) groups=0(wheel), 5(operator)
#

The machine is a FreeBSD-STABLE, here you are the output of uname -a:

FreeBSD thunderbird.BSDInformatica.biz 5.5-PRERELEASE FreeBSD
5.5-PRERELEASE #2: Tue Apr 11 17:45:51 CEST 2006    
taglio at thunderbird.BSDInformatica.biz:/usr/obj/usr/src/sys/THUNDERBIRD
 i386

Any suggetions?
Best Regards, RG.

--
Name: Riccardo Giuntoli
Email: taglio@[gmail.com, luxoro.org, BSDInformatica.biz]
Homepage: http://www.luxoro.org/
Location: Genova, Italy
6BONE Handle: RG581-6BONE
PGP Key: 0x67123739
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