Trac #15: Resolved a test code build failure issue which would occur if Mercury was previously installed in the $INSTALL_PREFIX folder, which is also the install directory of NA plugins; and we change the NA plugins selection and build again.  NA_HAS_XXX macros remain defined because header file na_config.h from the $INSTALL_PREFIX directory was being included.
Trac #15: Resolved a test code build failure issue which would occur
if Mercury was previously installed in the $INSTALL_PREFIX folder,
which is also the install directory of NA plugins; and we change the
NA plugins selection and build again.  NA_HAS_XXX macros remain
defined because header file na_config.h from the $INSTALL_PREFIX
directory was being included.

mercury-hpc/mercury,mercury-hpc/mercury,mercury-hpc/mercury,mercury-hpc/mercury