extern "C" {
#endif
+#include <features.h>
+
#include <bits/setjmp.h>
-typedef unsigned long sigjmp_buf[(1024+sizeof(jmp_buf))/sizeof(long)];
-#ifdef _GNU_SOURCE
-#define jmp_buf sigjmp_buf
+typedef struct __jmp_buf_tag {
+ __jmp_buf __jb;
+ unsigned long __fl;
+ unsigned long __ss[128/sizeof(long)];
+} jmp_buf[1];
+
+#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
+ || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) \
+ || defined(_BSD_SOURCE)
+typedef jmp_buf sigjmp_buf;
+int sigsetjmp (sigjmp_buf, int);
+_Noreturn void siglongjmp (sigjmp_buf, int);
#endif
-int setjmp (jmp_buf);
+#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) \
+ || defined(_BSD_SOURCE)
int _setjmp (jmp_buf);
-int sigsetjmp (sigjmp_buf, int);
+_Noreturn void _longjmp (jmp_buf, int);
+#endif
-void longjmp (jmp_buf, int);
-void _longjmp (jmp_buf, int);
-void siglongjmp (sigjmp_buf, int);
+int setjmp (jmp_buf);
+_Noreturn void longjmp (jmp_buf, int);
#define setjmp setjmp
-#define longjmp longjmp
#ifdef __cplusplus
}