CentOS下安装libmcrypt失败

libmcrypt是什么？？

是加密算法扩展库---支持DES, 3DES, RIJNDAEL, Twofish, IDEA, GOST, CAST-256, ARCFOUR, SERPENT, SAFER+等算法

在安装时候出现如下错误：

出现该情况是由于c++编译器的相关package没有安装，以root用户登陆

# yum install glibc-headers  
# yum install gcc-c++   

在编译安装 mcrypt 出现了错误 ,一下是错误信息

[root@localhost mcrypt-2.6.8]# make

make  all-recursive

make[1]: Entering directory `/root/tools/lamp/mcrypt-2.6.8'

Making all in doc

make[2]: Entering directory `/root/tools/lamp/mcrypt-2.6.8/doc'

make[2]: Nothing to be done for `all'.

make[2]: Leaving directory `/root/tools/lamp/mcrypt-2.6.8/doc'

Making all in src

make[2]: Entering directory `/root/tools/lamp/mcrypt-2.6.8/src'

gcc -DHAVE_CONFIG_H -I. -I.. -DLOCALEDIR="/usr/local/share/locale" -I../intl    -g -O2 -I/usr/local/include -Wall -MT extra.o -MD -MP -MF .deps/extra.Tpo -c -o extra.o extra.c

In file included from /usr/local/include/mhash.h:33,

                 from ./defines.h:8,

                 from extra.c:24:

/usr/local/include/mutils.h:27:26: error: mhash_config.h: No such file or directory

extra.c: In function ‘write_file_head’:

于是查看 /usr/local/include/mutils.h 第26,27行:

#if defined(HAVE_CONFIG_H)

#include <mhash_config.h>

#endif

到 /usr/local/include/ 目录下一看 没有 mhash_config.h 文件.

解决办法: 从系统中查找 mhash_config.h 将找到的 mhash_config.h 复制到 /usr/local/include/

# locate mhash_config.h

/root/tools/lamp/mhash-0.9.3/mhash_config.h

/root/tools/lamp/mhash-0.9.3/mhash_config.h.in

/usr/include/mutils/mhash_config.h

# cp /usr/include/mutils/mhash_config.h /usr/local/include/

查看是否已经安装
ldconfig -p | grep libmcrypt
ldconfig -p | grep mcrypt