# gl_VALGRIND_TESTS()
# -------------------
# Check if valgrind is available, and set VALGRIND to it if available.
AC_DEFUN([gl_VALGRIND_TESTS],
[
  AC_ARG_ENABLE(valgrind-tests,
    AS_HELP_STRING([--enable-valgrind-tests],
                   [run self tests under valgrind]),
    [opt_valgrind_tests=$enableval], [opt_valgrind_tests=no])
  # Run self-tests under valgrind?
  if test "$opt_valgrind_tests" = "yes" && test "$cross_compiling" = no; then
    AC_CHECK_PROGS(VALGRIND, valgrind)
  fi
  OPTS="-q --error-exitcode=1 --leak-check=full --suppressions=ecm.supp"
  if test -n "$VALGRIND" \
     && $VALGRIND $OPTS $SHELL -c 'exit 0' > /dev/null 2>&1; then
    opt_valgrind_tests=yes
    VALGRIND="$VALGRIND $OPTS"
  else
    opt_valgrind_tests=no
    VALGRIND=
  fi
  AC_MSG_CHECKING([whether self tests are run under valgrind])
  AC_MSG_RESULT($opt_valgrind_tests)
])