On a SunOS 5.8 machine, I'm trying to compile with sun ACL
I was getting multiple defined db_writeacl() errors:
db_disk.c:510 int db_writeacl(...)
db_file.c:775 int db_writeacl(...)
The "version" of db_writeacl in db_disk just returns
assuming that that was intended, I just made db_disk's copy
of the function static. It links okay after that.