--- libstdc++-v3/configure.orig	2012-03-02 08:13:55.000000000 +0100
+++ libstdc++-v3/configure	2012-03-25 12:31:53.278684698 +0200
@@ -64773,7 +64773,7 @@
 	  	        esac
 
 else
-  enable_symvers=yes
+  enable_symvers=gnu-versioned-namespace
 fi
 
 
--- libstdc++-v3/configure.ac.orig	2012-03-25 12:31:14.966921062 +0200
+++ libstdc++-v3/configure.ac	2012-03-25 12:30:07.363809031 +0200
@@ -308,7 +308,7 @@
 
 GCC_HEADER_STDINT(include/gstdint.h)
 
-GLIBCXX_ENABLE_SYMVERS([yes])
+GLIBCXX_ENABLE_SYMVERS([gnu-versioned-namespace])
 AC_SUBST(libtool_VERSION)
 
 GLIBCXX_ENABLE_LIBSTDCXX_VISIBILITY([yes])