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[root@quad ~]# pear install ssh2
PHP Warning:  Unknown(): Invalid library (maybe not a PHP library) 'libcurl.so'  in Unknown on line 0
PHP Warning:  Unknown(): Unable to load dynamic library '/usr/lib/php4/php_ssh2.so' - /usr/lib/php4/php_ssh2.so: cannot open shared object file: No such file or directory in Unknown on line 0

Notice: Undefined index:  st in RPC.php on line 292
No release with state equal to: 'stable' found for 'ssh2'