#ifndef __XEN_KCONFIG_H

#define __XEN_KCONFIG_H

#include <generated/autoconf.h>

/*

 * Helper macros to use CONFIG_ options in C/CPP expressions. Note that

 * these only work with boolean option.

 */

/*

 * Getting something that works in C and CPP for an arg that may or may

 * not be defined is tricky.  Here, if we have "#define CONFIG_BOOGER 1"

 * we match on the placeholder define, insert the "0," for arg1 and generate

 * the triplet (0, 1, 0).  Then the last step cherry picks the 2nd arg (a one).

 * When CONFIG_BOOGER is not defined, we generate a (... 1, 0) pair, and when

 * the last step cherry picks the 2nd arg, we get a zero.

 */

#define __ARG_PLACEHOLDER_1 0,

#define config_enabled(cfg) _config_enabled(cfg)

#define _config_enabled(value) __config_enabled(__ARG_PLACEHOLDER_##value)

#define __config_enabled(arg1_or_junk) ___config_enabled(arg1_or_junk 1, 0)

#define ___config_enabled(__ignored, val, ...) val

/*

 * IS_ENABLED(CONFIG_FOO) evaluates to 1 if CONFIG_FOO is set to 'y', 0

 * otherwise.

 */

#define IS_ENABLED(option) config_enabled(option)

#endif /* __XEN_KCONFIG_H */