(weak_symbol): New macro.

diff --git a/libc-symbols.h b/libc-symbols.h
index b41c956..83773bf 100644 (file)
--- a/libc-symbols.h
+++ b/libc-symbols.h
@@ -96,13 +96,18 @@ Cambridge, MA 02139, USA.  */
 #define weak_alias(original, alias)    \
   .weak C_SYMBOL_NAME (alias); \
   C_SYMBOL_NAME (alias) = C_SYMBOL_NAME (original)
+
+/* Declare SYMBOL to be weak.  */
+#define weak_symbol(symbol)    .weak C_SYMBOL_NAME (symbol)
 #else
+#define weak_symbol(symbol)    asm (".weak " __SYMBOL_PREFIX #symbol);
 #define weak_alias(original, alias) \
   asm (".weak " __SYMBOL_PREFIX #alias "\n" \
        __SYMBOL_PREFIX #alias " = " __SYMBOL_PREFIX #original);
 #endif
 #else
 #define        weak_alias(original, alias) strong_alias(original, alias)
+#define weak_symbol(symbol)    /* Do nothing.  */
 #endif