* typeck.c (mark_addressable): Never set TREE_USED.

[pf3gnuchains/gcc-fork.git] / gcc / cp / call.c

diff --git a/gcc/cp/call.c b/gcc/cp/call.c
index 48ce6fb..4a68f57 100644 (file)
--- a/gcc/cp/call.c
+++ b/gcc/cp/call.c
@@ -397,8 +397,11 @@ build_call (function, parms)
 
   if (decl && ! TREE_USED (decl))
     {
-      /* We invoke build_call directly for several library functions.  */
-      if (DECL_ARTIFICIAL (decl))
+      /* We invoke build_call directly for several library functions.
+        These may have been declared normally if we're building libgcc,
+        so we can't just check DECL_ARTIFICIAL.  */
+      if (DECL_ARTIFICIAL (decl)
+         || !strncmp (IDENTIFIER_POINTER (DECL_NAME (decl)), "__", 2))
        mark_used (decl);
       else
        my_friendly_abort (990125);