如何编译php以启用webp支持？

CentOS release 5.8 (Final) x86_64
freetype-2.4.6
jpeg-8c
libpng-1.2.35
gd-2.1.0

php编译命令

./configure    --prefix=/apps/lib/php-5.5.10  --with-mysql=mysqlnd   --with-mysqli=mysqlnd   --with-pdo-mysql=mysqlnd   --enable-mysqlnd   --enable-fpm   --enable-mbstring   --enable-mbregex   --with-zlib-dir=/apps/lib/zlib   --enable-pcntl   --enable-sockets   --enable-ftp   --enable-soap   --enable-bcmath   --disable-debug   --enable-sockets   --enable-inline-optimization   --disable-rpath   --with-mysql=/apps/svr/mysql5   --with-libxml-dir=/apps/lib/libxml   --with-jpeg-dir=/apps/lib/jpeg   --with-iconv-dir=/apps/lib/libiconv   --with-mcrypt=/apps/lib/libmcrypt   --with-freetype-dir=/apps/lib/freetype   --with-gd=/apps/lib/gd-2.1.0  --with-openssl-dir=/apps/lib/openssl   --with-openssl=/apps/lib/openssl   --with-curl=/apps/lib/curl  --with-png-dir=/apps/lib/libpng --enable-opcache=no

最后得到gd的这个输出

gd

GD Support => enabled
GD Version => 2.1.0-alpha
FreeType Support => enabled
FreeType Linkage => with freetype
FreeType Version => 2.4.6
GIF Read Support => enabled
GIF Create Support => enabled
JPEG Support => enabled
libJPEG Version => 8
PNG Support => enabled
libPNG Version => 1.2.35
WBMP Support => enabled
XPM Support => enabled
libXpm Version => 30411
XBM Support => enabled

当我按照’http://techglimpse.com/install-upgrade-php55-yum/‘的步骤使用remi.repo安装php 5.5.9时,我终于从gd的输出中得到了成功信号

gd

GD Support => enabled
GD Version => 2.1.0
FreeType Support => enabled
FreeType Linkage => with freetype
FreeType Version => 2.2.1
T1Lib Support => enabled
GIF Read Support => enabled
GIF Create Support => enabled
JPEG Support => enabled
libJPEG Version => 6b
PNG Support => enabled
libPNG Version => 1.2.10
WBMP Support => enabled
XPM Support => enabled
libXpm Version => 30411
XBM Support => enabled
WebP Support => enabled

对于系统管理员的关注,我需要使用编译版本部署php.编译php或lib gd时,我是否错过了重要的内容？