Patch from Yoshinori Sato <ysato@users.sourceforge.jp>.

diff --git a/libc/sysdeps/linux/common/bits/machine-gmon.h b/libc/sysdeps/linux/common/bits/machine-gmon.h
index eb046b0..7dd3630 100644 (file)
--- a/libc/sysdeps/linux/common/bits/machine-gmon.h
+++ b/libc/sysdeps/linux/common/bits/machine-gmon.h
@@ -47,6 +47,10 @@ static void mcount_internal (u_long frompc, u_long selfpc);
 #define _MCOUNT_DECL(frompc, selfpc) \
 static inline void mcount_internal (u_long frompc, u_long selfpc)
 
+#ifndef RETURN_ADDRESS
+#define RETURN_ADDRESS(n) __builtin_return_address(n)
+#endif
+
 #define MCOUNT \
 void _mcount (void)                                                          \
 {                                                                            \