在RHEL4

[leshy@leshy ~]$ cat /etc/redhat-release
Red Hat Enterprise Linux AS release 4 (Nahant Update 7)
[leshy@leshy ~]$ uname -a
Linux leshy.cn 2.6.9-78.ELsmp #1 SMP Wed Jul 9 15:39:47 EDT 2008 i686 i686 i386 GNU/Linux
[leshy@leshy ~]$ rpm -qa|grep crack
cracklib-2.8.9-1.3
cracklib-dicts-2.8.9-1.3

环境中，下载了最近的libcrack。在尝试编译util目录下程序时，一直报

/usr/include/packer.h:91: error: syntax error before "FindPW"

最后，将/usr/include/packer.h:的91行的u_sint32改成extern unsigned int FindPW(PWDICT *pwp, char *string);

这样就可以了。。。