# and how many arguments it takes.
#
echo "$CONFTEST_PREAMBLE
#include <acpi/acpi.h>
#include <linux/acpi.h>
void conftest_acpi_walk_namespace(void) {
acpi_walk_namespace();
}" > conftest$$.c
fi
acpi_walk_namespace(0, NULL, 0, NULL, NULL, NULL, NULL);
acpi_walk_namespace(0, NULL, 0, NULL, NULL, NULL);