Fix build issues on CentOS
Hi. I had problems compiling modwaklog using CentOS and the latest
openafs from git.
I managed to work out generally-useful solutions to the problems, so I
thought I'd send this patch on.
1. I added a configuration option to tell it where to find the apr
headers.
2. The afs headers to include have changed. It was complaining that
afs_int32 was undefined. I now include <afs/param.h>, which is
apparently the accepted thing to do for afs programs.
3. When my build was completed, I found the .so file not in the main
directory, but in .libs/mod_waklog.so. I updated the documentation to
say to look for it there.
I attached a patch that fixed these problems for me.
Thanks.
--Ryan