--- curlbuild.h.orig	2012-10-23 07:12:29.000000000 +0000
+++ curlbuild.h	2012-10-23 07:13:06.000000000 +0000
@@ -1,7 +1,11 @@
 #include <bits/wordsize.h>
 
 #if __WORDSIZE == 32
+#if defined __x86_64__ && defined __ILP32__
+#include "curlbuild-x32.h"
+#else
 #include "curlbuild-32.h"
+#endif
 #elif __WORDSIZE == 64
 #include "curlbuild-64.h"
 #else