1.安装zlib，一般Centos系统自带已经安装好，可以用以下命令去查看：

[root@Test-Web2 ~]# rpm -qa | grep zlib

zlib-1.2.1.2-1.2

zlib-devel-1.2.1.2-1.2

You have new mail in /var/spool/mail/root

[root@Test-Web2 ~]#

有的话就不用安装了，没有就手动去下载编译：

tar zxvf zlib-1.2.2.tar.gz（版本自己挑，没所谓）

  cd zlib-1.2.2

  ./configure

  make 

  make install

2.安装libpng

tar zxvf libpng-1.4.2.tar.tar

  cd libpng-1.4.2

./configure

  make

  make install

3.安装freetype

tar zxvf freetype-2.3.12.tar.gz

  cd freetype-2.3.12

  ./configure

  make

  make install

4.安装Jpeg

 tar zxvf jpegsrc.v8b.tar.gz

  cd jpeg-8b/

  ./configure --enable-shared

  make

  make test

  make install

注意，这里configure一定要带--enable-shared参数，不然，不会生成共享库

5.安装GD

GD-2.44.tar.gz不会安装，^_^

换回gd-2.0.33.tar.gz

tar zxvf gd-2.0.33.tar.gz 

  cd gd-2.0.33

  ./configure --with-png --with-freetype --with-jpeg

make

  make install

6.安装PHP

php-5.2.11.tar.gz

 tar zxvf php-5.2.11.tar.gz

  cd php-5.2.11

  ./configure选项见下方

  make

  make install

注：

/usr/local/include/freetype2/freetype

freetype

/usr/local/include/include

t1lig

/usr/local/include/libpng14/

png

/usr/local/include

jpeg

[root@Test-Web2 php-5.2.11]# ./configure --help | grep t1lib

  --with-t1lib[=DIR]        GD: Include T1lib support. T1lib version >= 5.0.0 required

[root@Test-Web2 php-5.2.11]# ./configure --help | grep png

  --with-png-dir[=DIR]      GD: Set the path to libpng install prefix

[root@Test-Web2 php-5.2.11]# ./configure --help | grep jpeg

  --with-jpeg-dir[=DIR]     GD: Set the path to libjpeg install prefix

[root@Test-Web2 php-5.2.11]# ./configure --help | grep freetype

  --with-freetype-dir[=DIR] GD: Set the path to FreeType 2 install prefix

[root@Test-Web2 php-5.2.11]#

./configure --prefix=/opt/php5 --with-apxs2=/opt/apache/bin/apxs --with-mysql=/usr/local/mysql --with-config-file-path=/opt/php5/lib --with-gd --with-zlib --with-png-dir=/usr/local/include/libpng14/  --with-jpeg-dir=/usr/local/include  --with-freetype-dir=/usr/local/include/freetype2/freetype （--with-t1lib  --with-t1lib-dir=/usr/local/include/include）

最后只有T1Lib Support没有启用。

GD库支持最终如下：

gd

GD Support  enabled 

GD Version  bundled (2.0.34 compatible) 

FreeType Support  enabled 

FreeType Linkage  with freetype 

FreeType Version  2.3.12 

GIF Read Support  enabled 

GIF Create Support  enabled 

JPG Support  enabled 

PNG Support  enabled 

WBMP Support  enabled 

XBM Support  enabled

 

在apache配置文件中添加如下内容：

Listen 81

#

# Dynamic Shared Object (DSO) Support

#

# To be able to use the functionality of a module which was built as a DSO you

# have to place corresponding `LoadModule' lines at this location so the

# directives contained in it are actually available _before_ they are used.

# Statically compiled modules (those listed by `httpd -l') do not need

# to be loaded here.

#

# Example:

# LoadModule foo_module modules/mod_foo.so

LoadModule php5_module        modules/libphp5.so

AddType application/x-httpd-php .php

AddType application/x-httpd-php-source .phps

#

<IfModule !mpm_netware_module>

 

在htdocs文件夹里建立以下文件info.php

[root@Test-Web2 apache]# cat htdocs/info.php

<?php

 echo phpinfo();

?>

[root@Test-Web2 apache]#

可查询GD库支持的情况。