php modul oci8 na SLES

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pecl install oci8
WARNING: channel "pecl.php.net" has updated its protocols, use "pecl channel-update pecl.php.net" to update
downloading oci8-1.4.7.tar ...
Starting to download oci8-1.4.7.tar (Unknown size)
.................................................. .................................................. .................................................. .................................................. .................................................. ........................done: 1,390,592 bytes
10 source files, building
running: phpize5
Configuring for:
PHP Api Version: 20041225
Zend Module Api No: 20060613
Zend Extension Api No: 220060519
Please provide the path to the ORACLE_HOME directory. Use 'instantclient,/path/to/instant/client/lib' if you're compiling with Oracle Instant Client [autodetect] :
building in /var/tmp/pear-build/oci8-1.4.7
running: /tmp/pear/temp/oci8/configure --with-oci8
checking for grep that handles long lines and -e... /usr/bin/grep
checking for egrep... /usr/bin/grep -E
checking for a sed that does not truncate output... /usr/bin/sed
checking for cc... no
checking for gcc... no
configure: error: no acceptable C compiler found in $PATH
See `config.log' for more details.
ERROR: `/tmp/pear/temp/oci8/configure --with-oci8' failed