- Work around broken configure script and explicitly set location of
sudo_noexec.so to unbreak NOEXEC option. 
- Build using --with-secure-path if SUDO_SECURE_PATH is set when
building the port. SUDO_SECURE_PATH should be set to a PATH string.
- Don't bother deleting sudo_noexec.la. Deleting the file after it's
installed is ugly and since it's not harmful it's not worth patching
- Set CONFIGURE_TARGET.
PR: 115442 , 115381 
Submitted by: vd , Janos Mohacsi