[root@DR ~]# uname -r       
2.6.18-194.el5
[root@DR ~]# cat /etc/issue 
Red Hat Enterprise Linux Server release 5.5 (Tikanga)
Kernel \r on an \m

[root@DR keepalived-1.1.15]# ./configure 
checking for gcc... gcc
checking for C compiler default output file name... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables... 
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ANSI C... none needed
checking for a BSD-compatible install... /usr/bin/install -c
checking for strip... strip
checking how to run the C preprocessor... gcc -E
checking for egrep... grep -E
checking for ANSI C header files... yes
checking for sys/wait.h that is POSIX.1 compatible... yes
checking for sys/types.h... yes
checking for sys/stat.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for memory.h... yes
checking for strings.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for unistd.h... yes
checking fcntl.h usability... yes
checking fcntl.h presence... yes
checking for fcntl.h... yes
checking syslog.h usability... yes
checking syslog.h presence... yes
checking for syslog.h... yes
checking for unistd.h... (cached) yes
checking sys/ioctl.h usability... yes
checking sys/ioctl.h presence... yes
checking for sys/ioctl.h... yes
checking sys/time.h usability... yes
checking sys/time.h presence... yes
checking for sys/time.h... yes
checking openssl/ssl.h usability... no
checking openssl/ssl.h presence... no
checking for openssl/ssl.h... no
configure: error:
  !!! OpenSSL is not properly installed on your system. !!!
  !!! Can not include OpenSSL headers files.            !!!
[root@DR keepalived-1.1.15]# rpm -qa|grep openssl
openssl-0.9.8e-12.el5_4.6

yum install openssl-devel

Installed:
  openssl-devel.i386 0:0.9.8e-12.el5_4.6                                                                                    

Dependency Installed:
  e2fsprogs-devel.i386 0:1.39-23.el5         keyutils-libs-devel.i386 0:1.2-1.el5     krb5-devel.i386 0:1.6.1-36.el5_4.1    
  libselinux-devel.i386 0:1.33.4-5.5.el5     libsepol-devel.i386 0:1.15.2-3.el5       zlib-devel.i386 0:1.2.3-3

安装openssl-devel之后OK

[root@DR keepalived-1.1.15]# ./configure              
checking for gcc... gcc
checking for C compiler default output file name... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables... 
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ANSI C... none needed
checking for a BSD-compatible install... /usr/bin/install -c
checking for strip... strip
checking how to run the C preprocessor... gcc -E
checking for egrep... grep -E
checking for ANSI C header files... yes
checking for sys/wait.h that is POSIX.1 compatible... yes
checking for sys/types.h... yes
checking for sys/stat.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for memory.h... yes
checking for strings.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for unistd.h... yes
checking fcntl.h usability... yes
checking fcntl.h presence... yes
checking for fcntl.h... yes
checking syslog.h usability... yes
checking syslog.h presence... yes
checking for syslog.h... yes
checking for unistd.h... (cached) yes
checking sys/ioctl.h usability... yes
checking sys/ioctl.h presence... yes
checking for sys/ioctl.h... yes
checking sys/time.h usability... yes
checking sys/time.h presence... yes
checking for sys/time.h... yes
checking openssl/ssl.h usability... yes
checking openssl/ssl.h presence... yes
checking for openssl/ssl.h... yes
checking openssl/md5.h usability... yes
checking openssl/md5.h presence... yes
checking for openssl/md5.h... yes
checking openssl/err.h usability... yes
checking openssl/err.h presence... yes
checking for openssl/err.h... yes
checking for MD5_Init in -lcrypto... yes
checking for SSL_CTX_new in -lssl... yes
checking for poptGetContext in -lpopt... yes
checking for kernel version... 2.6.18-194
checking for /usr/src/linux/net/core/link_watch.c... no
checking net/ip_vs.h usability... yes
checking net/ip_vs.h presence... yes
checking for net/ip_vs.h... yes
checking for IPVS version... 1.2.1
checking for IPVS syncd support... yes
checking for kernel netlink support... yes
checking for an ANSI C-conforming const... yes
checking for pid_t... yes
checking whether time.h and sys/time.h may both be included... yes
checking whether gcc needs -traditional... no
checking for working memcmp... yes
checking return type of signal handlers... void
checking for gettimeofday... yes
checking for select... yes
checking for socket... yes
checking for strerror... yes
checking for strtol... yes
checking for uname... yes
configure: creating ./config.status
config.status: creating Makefile
config.status: creating genhash/Makefile
config.status: creating keepalived/core/Makefile
config.status: creating keepalived/include/config.h
config.status: creating keepalived.spec
config.status: creating keepalived/Makefile
config.status: creating lib/Makefile
config.status: creating keepalived/vrrp/Makefile
config.status: creating keepalived/check/Makefile
config.status: creating keepalived/libipvs-2.6/Makefile

Keepalived configuration
------------------------
Keepalived version       : 1.1.15
Compiler                 : gcc
Compiler flags           : -g -O2
Extra Lib                : -lpopt -lssl -lcrypto 
Use IPVS Framework       : Yes
IPVS sync daemon support : Yes
Use VRRP Framework       : Yes
Use LinkWatch            : No
Use Debug flags          : No
[root@DR keepalived-1.1.15]#

本文转自it你好 51CTO博客，原文链接：http://blog.51cto.com/itnihao/753227，如需转载请自行联系原作者