diff mbox series

[v3,03/19] test endianness with __BYTE_ORDER__

Message ID 20181214001536.6259-4-luc.vanoostenryck@gmail.com (mailing list archive)
State Mainlined, archived
Headers show
Series predefined macros for intmax_t/intptr_t/... | expand

Commit Message

Luc Van Oostenryck Dec. 14, 2018, 12:15 a.m. UTC 
The detection of the native endianness is currently done by
testing if __BIG_ENDIAN__ is defined.

However, not all native big endian platforms define this macro.

Test the endianness with __BYTE_ORDER__.

Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
---
 machine.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/machine.h b/machine.h
index 1eacb556e..522f9ba08 100644
--- a/machine.h
+++ b/machine.h
@@ -1,7 +1,7 @@ 
 #ifndef MACHINE_H
 #define MACHINE_H
 
-#ifdef __BIG_ENDIAN__
+#if defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)
 #define ARCH_BIG_ENDIAN 1
 #else
 #define ARCH_BIG_ENDIAN 0