#endif
#include <bits/setjmp.h>
-typedef unsigned long sigjmp_buf[(1024+sizeof(jmp_buf))/sizeof(long)];
+
+#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
+ || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE)
+typedef unsigned long sigjmp_buf[(128+sizeof(jmp_buf))/sizeof(long)];
#ifdef _GNU_SOURCE
#define jmp_buf sigjmp_buf
#endif
+int sigsetjmp (sigjmp_buf, int);
+void siglongjmp (sigjmp_buf, int);
+#endif
-int setjmp (jmp_buf);
+
+#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE)
int _setjmp (jmp_buf);
-int sigsetjmp (sigjmp_buf, int);
+void _longjmp (jmp_buf, int);
+#endif
+
+int setjmp (jmp_buf);
void longjmp (jmp_buf, int);
-void _longjmp (jmp_buf, int);
-void siglongjmp (sigjmp_buf, int);
#define setjmp setjmp
#define longjmp longjmp