[root@hexu.org imap]$ yum install -y libc-client-devel

[root@hexu.org imap]$ ln -s /usr/lib64/libc-client.so /usr/lib/libc-client.so

3. 进行安装

[root@hexu.org imap]$ /usr/local/php/bin/phpize

[root@hexu.org imap]$ ./configure –with-php-config=/usr/local/php/bin/php-config –with-imap –with-imap-ssl –with-kerberos

[root@hexu.org imap]$ make && make install

4. 最后调整php.ini

[root@hexu.org imap]$ vi /usr/local/php/lib/php.ini

##vi php.ini add following config

[imap]

extension = imap.so

5. 检查是否安装成功

[root@hexu.org imap]# php -v

PHP 5.3.23 (cli) (built: Apr  7 2013 23:20:21) 

Copyright (c) 1997-2013 The PHP Group

Zend Engine v2.3.0, Copyright (c) 1998-2013 Zend Technologies

[root@hexu.org imap]# php -m | grep imap

imap ## 看到这里，说明成功安装了

按上面顺序安装应该不会有报错，如果发现错误根据提示找相应的依赖包安装即可，下面举例安装过程遇到的2个error.

1. 没有安装libc-client-devel导致，按上面第一步安装即可, Error info:

checking for utf8_mime2text signature… new

checking for U8T_DECOMPOSE… 

configure: error: utf8_mime2text() has new signature, but U8T_CANONICAL is missing. This should not happen. Check config.log for additional information.

2. 找不到libc-client.a library, 需要手动添加文件link, Errof info:

checking for crypt in -lcrypt… yes

configure: error: Cannot find imap library (libc-client.a). Please check your c-client installation.

解决方法：

# ln -s /usr/lib64/libc-client.so /usr/lib/libc-client.so

如果出现 Cannot find imap library (libc-client.a).

我们只要执行

# yum install libc-client-devel.x86_64

# ln -s /usr/lib64/libc-client.so /usr/lib/libc-client.so