[PATCH 1/4] arch: add missing predfines: __amd64 & __amd64__

[Luc Van Oostenryck <luc.vanoostenryck@xxxxxxxxx>]

These seems to be defined whenever s__x86_64 & __x86_64__
are defined.

So, do the same here too.

Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@xxxxxxxxx>
---
 lib.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib.c b/lib.c
index 45402e51f..28ca49c7c 100644
--- a/lib.c
+++ b/lib.c
@@ -1609,6 +1609,8 @@ static void predefined_macros(void)
 		if (arch_m64 != ARCH_LP32) {
 			predefine("__x86_64__", 1, "1");
 			predefine("__x86_64", 1, "1");
+			predefine("__amd64__", 1, "1");
+			predefine("__amd64", 1, "1");
 			break;
 		}
 		/* fall-through */
-- 
2.24.0