QA 1160: SELinux tweaks
QA 1160: SELinux tweaks

Set default value for the variable checking Linux-specific proc file.

Check whether SELinux icmp_socket class is available like configure.

adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp