if test $use_openexr_half = yes ; then {
AC_MSG_RESULT([ ** Using OpenEXR Half.])
CONFIG_CFLAGS="$CONFIG_CFLAGS -DUSE_HALF_TYPE"
if test $use_openexr_half = yes ; then {
AC_MSG_RESULT([ ** Using OpenEXR Half.])
CONFIG_CFLAGS="$CONFIG_CFLAGS -DUSE_HALF_TYPE"