1：下载下载Libmcrypt,mhash,mcryp三个安装包

libmcrypt-2.5.8.tar.gz

# wget http://sourceforge.net/project/showfiles.php?group_id=87941&package_id=91774&release_id=487459

 
mhash-0.9.9.tar.gz

# wget http://sourceforge.net/project/showfiles.php?group_id=4286&package_id=4300&release_id=645636

 
mcrypt-2.6.8.tar.gz

# wget http://sourceforge.net/project/showfiles.php?group_id=87941&package_id=91948&release_id=642101 

2：安装libmcrypt

# ./configure --prefix=/usr/local/lib/libmcrypt/
# make
# make install

 
3：安装mhash

# ./configure --prefix=/usr/local/lib/mhash/
# make
# make install

 

4：安装mcrypt

# export LD_LIBRARY_PATH=/usr/local/lib/libmcrypt/lib:/usr/local/lib/mhash/lib
# export LDFLAGS="-L/usr/local/lib/mhash/lib/ -I/usr/local/lib/mhash/include/"
# export CFLAGS="-I/usr/local/lib/mhash/include"

上面三步一定要仔细，最容易出问题的地方就是这里。

 

# ./configure --prefix=/usr/local/mcrypt --with-libmcrypt-prefix=/usr/local/lib/libmcrypt/
# make
# make install

5：php扩展

# cd /usr/local/lnmp/php-5.5.25/ext/mcrypt/ #进入php源文件
# /usr/local/php/bin/phpize 
# ./configure --with-php-config=/usr/local/php/bin/php-config --with-mcrypt=/usr/local/lib/libmcrypt/ #安装
# make
# make install

6：extension = " /usr/local/php/lib/php/extensions/no-debug-non-zts-20121212/mcrypt.so" #加入php.ini，大功告成。