linux-vybrid_public/include/linux/kconfig.h

#ifndef __LINUX_KCONFIG_H
#define __LINUX_KCONFIG_H

#include <generated/autoconf.h>

/*
 * Helper macros to use CONFIG_ options in C expressions. Note that
 * these only work with boolean and tristate options.
 */

/*
 * IS_ENABLED(CONFIG_FOO) evaluates to 1 if CONFIG_FOO is set to 'y' or 'm',
 * 0 otherwise.
 *
 */
#define IS_ENABLED(option) \
	(__enabled_ ## option || __enabled_ ## option ## _MODULE)

/*
 * IS_BUILTIN(CONFIG_FOO) evaluates to 1 if CONFIG_FOO is set to 'y', 0
 * otherwise. For boolean options, this is equivalent to
 * IS_ENABLED(CONFIG_FOO).
 */
#define IS_BUILTIN(option) __enabled_ ## option

/*
 * IS_MODULE(CONFIG_FOO) evaluates to 1 if CONFIG_FOO is set to 'm', 0
 * otherwise.
 */
#define IS_MODULE(option) __enabled_ ## option ## _MODULE

#endif /* __LINUX_KCONFIG_H */