#
# Copyright (C) UT-Battelle, LLC. 2014-2015. ALL RIGHTS RESERVED.
# See file LICENSE for terms.
#

cma_happy="no"
AC_ARG_ENABLE([cma],
              [AC_HELP_STRING([--enable-cma],
                              [Enable Cross Memory Attach])],
                              [],
                              [enable_cma=yes])

AS_IF([test "x$enable_cma" != xno],
      [AC_CHECK_HEADERS([sys/uio.h],
            [AC_CHECK_FUNC([process_vm_readv],
                           [cma_happy="yes"],
                           [cma_happy="no"])
             AS_IF([test "x$cma_happy" = "xyes"],
                   [uct_modules="${uct_modules}:cma"])
            ])
      ]
)

AM_CONDITIONAL([HAVE_CMA], [test "x$cma_happy" != xno])
AC_CONFIG_FILES([src/uct/sm/cma/Makefile])