--- c_check.orig	2012-02-05 16:25:21.000000000 +0900
+++ c_check	2012-02-05 16:26:54.000000000 +0900
@@ -2,7 +2,7 @@
 
 # Checking cross compile
 $hostos   = `uname -s | sed -e s/\-.*//`;    chop($hostos);
-$hostarch = `uname -m | sed -e s/i.86/x86/`;chop($hostarch);
+$hostarch = `uname -m | sed -e s/i.86/x86/ | sed -e s/amd64/x86_64/`;chop($hostarch);
 
 $binary = $ENV{"BINARY"};
 
@@ -215,7 +215,7 @@
 # print $data, "\n";
 
 print MAKEFILE "OSNAME=$os\n";
-print MAKEFILE "ARCH=$architecture\n";
+print MAKEFILE "ARCH_=$architecture\n";
 print MAKEFILE "C_COMPILER=$compiler\n";
 print MAKEFILE "BINARY32=\n" if $binformat ne bin32;
 print MAKEFILE "BINARY64=\n" if $binformat ne bin64;