+
+#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
+ || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) \
+ || defined(_BSD_SOURCE)
+typedef unsigned long sigjmp_buf[(128+sizeof(jmp_buf))/sizeof(long)];
+int sigsetjmp (sigjmp_buf, int);
+void siglongjmp (sigjmp_buf, int);