--- origsrc/gcc-4.8-20130224/gcc/config/i386/cygwin-w64.h	2013-03-03 23:36:49.242030600 -0600
+++ src/gcc-4.8-20130224/gcc/config/i386/cygwin-w64.h	2013-03-03 23:46:37.374669900 -0600
@@ -70,13 +70,14 @@ along with GCC; see the file COPYING3.
 
 /* To implement C++ function replacement we always wrap the cxx
    malloc-like operators.  See N2800 #17.6.4.6 [replacement.functions] */
+#undef CXX_WRAP_SPEC_LIST
 #define CXX_WRAP_SPEC_LIST " \
-  --wrap _Znwj \
-  --wrap _Znaj \
+  --wrap _Znwm \
+  --wrap _Znam \
   --wrap _ZdlPv \
   --wrap _ZdaPv \
-  --wrap _ZnwjRKSt9nothrow_t \
-  --wrap _ZnajRKSt9nothrow_t \
+  --wrap _ZnwmRKSt9nothrow_t \
+  --wrap _ZnamRKSt9nothrow_t \
   --wrap _ZdlPvRKSt9nothrow_t \
   --wrap _ZdaPvRKSt9nothrow_t \
 "
--- origsrc/gcc-4.8-20130224/gcc/configure	2013-02-01 14:26:24.000000000 -0600
+++ src/gcc-4.8-20130224/gcc/configure	2013-03-03 23:54:23.174312100 -0600
@@ -24261,7 +24261,7 @@ fi
 	# wrappers to aid in interposing and redirecting operators new, delete,
 	# etc., as per n2800 #17.6.4.6 [replacement.functions].  Check if we
 	# are configuring for a version of Cygwin that exports the wrappers.
-	if test x$host = x$target; then
+	if test x$host = x$target && test x$host_cpu = xi686; then
 	  ac_fn_c_check_func "$LINENO" "__wrap__Znaj" "ac_cv_func___wrap__Znaj"
 if test "x$ac_cv_func___wrap__Znaj" = x""yes; then :
   gcc_ac_cygwin_dll_wrappers=yes
@@ -24270,7 +24270,8 @@ else
 fi
 
 	else
-	  # Can't check presence of libc functions during cross-compile, so
+	  # Either we're compiling for x86_64-cygwin, which is new enough, or
+	  # we can't check presence of libc functions during cross-compile, so
 	  # we just have to assume we're building for an up-to-date target.
 	  gcc_ac_cygwin_dll_wrappers=yes
 	fi
--- origsrc/gcc-4.8-20130224/gcc/configure.ac	2013-02-01 14:26:24.000000000 -0600
+++ src/gcc-4.8-20130224/gcc/configure.ac	2013-03-03 23:53:37.503699900 -0600
@@ -3611,10 +3611,11 @@ changequote([,])dnl
 	# wrappers to aid in interposing and redirecting operators new, delete,
 	# etc., as per n2800 #17.6.4.6 [replacement.functions].  Check if we
 	# are configuring for a version of Cygwin that exports the wrappers.
-	if test x$host = x$target; then
+	if test x$host = x$target && test x$host_cpu = xi686; then
 	  AC_CHECK_FUNC([__wrap__Znaj],[gcc_ac_cygwin_dll_wrappers=yes],[gcc_ac_cygwin_dll_wrappers=no])
 	else
-	  # Can't check presence of libc functions during cross-compile, so
+	  # Either we're compiling for x86_64-cygwin, which is new enough, or
+	  # we can't check presence of libc functions during cross-compile, so
 	  # we just have to assume we're building for an up-to-date target.
 	  gcc_ac_cygwin_dll_wrappers=yes
 	fi