Building ATS for transparency

--enable-posix-cap

--enable-tproxy[=value]

In the default case, ATS configuration will automatically check for TPROXY support via the presence of the linux/in.h header file and compile in TPROXY support if it is available. If that fails, you may be able to recover by using one of the options above. Note that transparency may be built in by default but it is not active unless explicitly enabled in the ATS configuration files.