extern "C" {
#endif
-#if __STDC_VERSION__ >= 201112L
-#elif defined(__GNUC__)
-#define _Noreturn __attribute__((__noreturn__))
-#else
-#define _Noreturn
-#endif
+#include <features.h>
#include <bits/setjmp.h>
#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
|| defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) \
|| defined(_BSD_SOURCE)
-typedef struct {
+typedef struct __sigjmp_buf {
jmp_buf __jb;
unsigned long __fl;
unsigned long __ss[128/sizeof(long)];