SPARC build fails due to missing 64-bit libdhcpagent
In #11707, libdhcpagent was also built as 64-bit, but only on x86. This causes the SPARC build to fail.
dmake: Warning: Command failed for target `libdhcpagent'
sh1: cd: sparcv9: [No such file or directory]
and then, later, the 64-bit netstat fails to build with
ld: fatal: library -ldhcpagent: not found