Only define PREFERRED_DEBUGGING_TYPE if it is not already defined.

From-SVN: r8018

diff --git a/gcc/config/svr4.h b/gcc/config/svr4.h
index d4124919e30246207d1515cf54f9b280059b9ead..970a1ad1d833e4aa2f69f01533b6975fb4b7671f 100644 (file)
--- a/gcc/config/svr4.h
+++ b/gcc/config/svr4.h
@@ -251,7 +251,9 @@ do {                                                                \
 
 /* Use DWARF debugging info by default.  */
 
+#ifndef PREFERRED_DEBUGGING_TYPE
 #define PREFERRED_DEBUGGING_TYPE DWARF_DEBUG
+#endif
 
 /* Make LBRAC and RBRAC addresses relative to the start of the
    function.  The native Solaris stabs debugging format works this