[PATCH libXt] Fix builds on X32

[Ross Burton]

The x86 X32 ABI is a 32-bit environment on 64-bit processors, so __amd64__ is
defined but pointers and longs are 32-bit. Handle this case by also checking
__LP64__.

Signed-off-by: Ross Burton <ross.burton at intel.com>
---
 include/X11/Xtos.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/X11/Xtos.h b/include/X11/Xtos.h
index 64b2da8..44f52c2 100644
--- a/include/X11/Xtos.h
+++ b/include/X11/Xtos.h
@@ -59,7 +59,7 @@ SOFTWARE.
     defined(__sparc64__) || \
     defined(__s390x__) || \
     (defined(__hppa__) && defined(__LP64__)) || \
-    defined(__amd64__) || defined(amd64) || \
+    ((defined(__amd64__) || defined(amd64)) && defined(__LP64__)) || \
     defined(__powerpc64__) || \
     (defined(sgi) && (_MIPS_SZLONG == 64))
 #define LONG64
-- 
2.1.4