Fixed ANSI compabillity.

debugger/stabs.c

diff --git a/debugger/stabs.c b/debugger/stabs.c
index a554d08..a72f8e6 100644
--- a/debugger/stabs.c
+++ b/debugger/stabs.c
@@ -21,7 +21,7 @@
 
 #include "debugger.h"
 
-#ifdef __svr4__
+#if defined(__svr4__) || defined(__sun)
 #define __ELF__
 #endif