编译安装PAM_MYSQL出错，请帮忙，谢谢

powerv_cu

使用pam_mysql-0.7RC1 版本
openssl 0。97a
OS:as4 up2  64bit

编译
./configure --with-openssl

这样后，还是出现报有关md5.h的编译错误

configure: WARNING: md5.h: present but cannot be compiled
configure: WARNING: md5.h:     check for missing prerequisite headers?
configure: WARNING: md5.h: see the Autoconf documentation
configure: WARNING: md5.h:     section "Present But Cannot Be Compiled"
configure: WARNING: md5.h: proceeding with the preprocessor's result
configure: WARNING: md5.h: in the future, the compiler will take precedence
configure: WARNING:     ## ------------------------------------ ##
configure: WARNING:     ## Report this to the pam_mysql lists.  ##
configure: WARNING:     ## ------------------------------------ ##
checking for md5.h... yes
checking for MD5Data... no


请问如何解决

PS：GOOGLE后，都说编译时加上 --with-openssl ，也指定过OPENSSL的目录，还是不行。谢谢大家