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/* Test -Wno-builtin-macro-redefined warnings. */
/* { dg-do compile } */
/* { dg-options "-Wno-builtin-macro-redefined -U__DATE__ -D__TIME__=X" } */
/* Check date, time, and datestamp built-ins warnings may be suppressed. */
#if defined(__DATE__)
#error "__DATE__ is defined, but should not be (-U command line error)"
/* { dg-bogus "__DATE__ is defined" "" { target *-*-* } .-1 } */
#endif
#if __TIME__ != X
#error "__TIME__ is not defined as expected (-D command line error)"
/* { dg-bogus "__TIME__ is not defined" "" { target *-*-* } .-1 } */
#endif
#if !defined(__TIMESTAMP__)
#error "__TIMESTAMP__ is not defined (built-in macro expectation error)"
/* { dg-bogus "__TIMESTAMP__ is not defined" "" { target *-*-* } .-1 } */
#endif
#undef __TIME__ /* Undefine while defined. */
#undef __TIME__ /* Undefine while already undefined. */
#define __TIME__ "X" /* Define while undefined. */
#define __TIME__ "X" /* Re-define while defined. */ /* { dg-line time_prev } */
#define __TIME__ "Y" /* { dg-warning "-:\"__TIME__\" redefined" } */
/* { dg-message "-:previous definition" "" { target *-*-* } time_prev } */
#undef __TIME__ /* Undefine while defined. */
#undef __DATE__ /* Undefine while already undefined. */
#define __DATE__ "X" /* Define while undefined. */
#define __DATE__ "X" /* Re-define while defined. */ /* { dg-line date_prev } */
#define __DATE__ "Y" /* { dg-warning "-:\"__DATE__\" redefined" } */
/* { dg-message "-:previous definition" "" { target *-*-* } date_prev } */
#undef __DATE__ /* Undefine while defined. */
#define __TIMESTAMP__ "X" /* Define while already defined. */
#define __TIMESTAMP__ "X" /* Re-define while defined. */ /* { dg-line timestamp_prev } */
#define __TIMESTAMP__ "Y" /* { dg-warning "-:\"__TIMESTAMP__\" redefined" } */
/* { dg-message "-:previous definition" "" { target *-*-* } timestamp_prev } */
#undef __TIMESTAMP__ /* Undefine while defined. */
/* Check other built-ins with warnings that may be suppressed. */
#if !defined(__FILE__) || !defined(__BASE_FILE__)
#error "Expected built-in is not defined (built-in macro expectation error)"
/* { dg-bogus "Expected built-in is not defined" "" { target *-*-* } .-1 } */
#endif
#define __FILE__ "X" /* Define while already defined. */
#define __BASE_FILE__ "X" /* Define while already defined. */
/* Check selected built-ins not affected by warning suppression. */
#if !defined(__LINE__) || !defined(__INCLUDE_LEVEL__) || !defined(__COUNTER__)
#error "Expected built-in is not defined (built-in macro expectation error)"
/* { dg-bogus "Expected built-in is not defined" "" { target *-*-* } .-1 } */
#endif
#define __LINE__ 0 /* { dg-warning "-:\"__LINE__\" redef" } */
#define __INCLUDE_LEVEL__ 0 /* { dg-warning "-:\"__INCLUDE_LEVEL__\" redef" } */
#define __COUNTER__ 0 /* { dg-warning "-:\"__COUNTER__\" redef" } */
int unused; /* Silence `ISO C forbids an empty translation unit' warning. */
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