header file fixes: multiple include guard consistency and correctness

[musl] / include / setjmp.h

diff --git a/include/setjmp.h b/include/setjmp.h
index 6288c84..83ad749 100644 (file)
--- a/include/setjmp.h
+++ b/include/setjmp.h
@@ -6,19 +6,26 @@ extern "C" {
 #endif
 
 #include <bits/setjmp.h>
-typedef unsigned long sigjmp_buf[(1024+sizeof(jmp_buf))/sizeof(long)];
 
-#ifdef _GNU_SOURCE
-#define jmp_buf sigjmp_buf
+
+#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);
 #endif
 
-int setjmp (jmp_buf);
+
+#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) \
+ || defined(_BSD_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