Nicer summary message for METIS

Prints "yes" instead of the full path to metis in the configure summary.

configure.ac

@@ -236,6 +236,7 @@ AX_PTHREAD([LIBS="$PTHREAD_LIBS $LIBS" CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
# Check for metis. Note AX_LIB_METIS exists, but cannot be configured
# to be default off (i.e. given no option it tries to locate METIS), so we
# don't use that.
+have_metis="no"
AC_ARG_WITH([metis],
[AS_HELP_STRING([--with-metis=PATH],
[root directory where metis is installed @<:@yes/no@:>@]
@@ -251,6 +252,7 @@ if test "x$with_metis" != "xno"; then
METIS_LIBS="-lmetis"
METIS_INCS=""
fi
+   have_metis="yes"
AC_CHECK_LIB([metis],[METIS_PartGraphKway],
AC_DEFINE([HAVE_METIS],1,[The metis library appears to be present.]),
AC_MSG_ERROR(something is wrong with the metis library!),$METIS_LIBS)
@@ -380,7 +382,7 @@ AC_MSG_RESULT([
MPI enabled     : $enable_mpi
HDF5 enabled    : $with_hdf5
- parallel     : $have_parallel_hdf5
-   Metis enabled   : $with_metis
+   Metis enabled   : $have_metis
libNUMA enabled : $have_numa
])