[PATCH] sys/cdefs.h: Protect parameters to __builtin_is_aligned()

[Paul Cercueil]

The macro was not protecting properly its first parameter, which caused
it to silently return an invalid value when passing a composed
parameter, ie.

__builtin_is_aligned(src | dst | len, 32);

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
---
 newlib/libc/include/sys/cdefs.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/newlib/libc/include/sys/cdefs.h b/newlib/libc/include/sys/cdefs.h
index d13a92a79..20b3553dc 100644
--- a/newlib/libc/include/sys/cdefs.h
+++ b/newlib/libc/include/sys/cdefs.h
@@ -736,7 +736,7 @@
 /* Provide fallback versions for other compilers (GCC/Clang < 10): */
 #if !__has_builtin(__builtin_is_aligned)
 #define __builtin_is_aligned(x, align)	\
-	(((__uintptr_t)x & ((align) - 1)) == 0)
+	(((__uintptr_t)(x) & ((align) - 1)) == 0)
 #endif
 #if !__has_builtin(__builtin_align_up)
 #define __builtin_align_up(x, align)	\
-- 
2.47.2