This error comes up on some linux machines (most notably updated CentOS/RHEL 6) when trying to compile the driver for RALink devices: Driver/UTIL/include/os/rt_linux.h:278: error: expected specifier-qualifier-list before ‘kuid_t’   This is due to this particular section of code in that file: #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,29) kuid_t                    […]

If WordPress won’t send emails and you’re running selinux you likely need to enable Apache’s ability to use sendmail.  If this is the case you’ll see something in /var/log/audit/audit.log: type=SYSCALL msg=audit(1455126829.120:44783832): arch=c000003e syscall=82 success=no exit=-13 a0=7fff665d7c20 a1=7fff665d8c20 a2=fff a3=7fff665d5ed0 items=0 ppid=18828 pid=13442 auid=0 uid=48 gid=48 euid=48 suid=48 fsuid=48 egid=51 sgid=51 fsgid=51 tty=(none) ses=6664 comm=”sendmail” exe=”/usr/sbin/sendmail.sendmail” […]