Centos6.0
php5.3.10
Apache/2.2.15
mysql 5.1.61
# uname -r
2.6.32-71.el6.x86_64

I want to install sybase_connect on CentOS 6.0

If you want to connect to a Sybase database using PHP, you need a php module named php_sybase or something similar in your distribution.

# yum install php-sybase_ct
Loaded plugins: fastestmirror, refresh-packagekit
Loading mirror speeds from cached hostfile
* atomic: www6.atomicorp.com
* base: centos.ustc.edu.cn
* extras: centos.ustc.edu.cn
* rpmforge: fr2.rpmfind.net
* updates: centos.ustc.edu.cn
atomic | 1.9 kB 00:00
base | 3.7 kB 00:00
extras | 3.5 kB 00:00
rpmforge | 1.1 kB 00:00
updates | 3.5 kB 00:00
updates/primary_db | 2.4 MB 00:13
Setting up Install Process
No package php-sybase_ct available.
Error: Nothing to do

Problem has been solved
First install freetds
./configure --prefix=/usr/local/php --with-sybase-ct=/usr/local/freetds --with-apxs2=/usr/local/apache2/bin/apxs --with-mysql --with-config-file-path=/usr/local/php/etc --with-iconv-dir=/usr/local/lib --with-freetype-dir --with-jpeg-dir --with-png-dir --with-zlib --with-libxml-dir=/usr --enable-xml --disable-rpath --enable-bcmath --with-curl --with-curlwrappers --enable-mbregex --enable-mbstring --with-mcrypt --with-gd --enable-gd-native-ttf --with-openssl --with-mhash --enable-pcntl --enable-sockets --with-xmlrpc --enable-zip --enable-soap --without-pear --with-ldap --with-ldap-sasl
Generating files
configure: creating ./config.status
creating main/internal_functions.c
creating main/internal_functions_cli.c
+--------------------------------------------------------------------+
| License: |
| This software is subject to the PHP License, available in this |
| distribution in the file LICENSE. By continuing this installation |
| process, you are bound by the terms of this license agreement. |
| If you do not agree with the terms of this license, you must abort |
| the installation process at this point. |
+--------------------------------------------------------------------+

Thank you for using PHP.

config.status: creating php5.spec
config.status: creating main/build-defs.h
config.status: creating scripts/phpize
config.status: creating scripts/man1/phpize.1
config.status: creating scripts/php-config
config.status: creating scripts/man1/php-config.1
config.status: creating sapi/cli/php.1
config.status: creating main/php_config.h
config.status: executing default commands



# make ZEND_EXTRA_LIBS=’-liconv’
# make install