Wrap __attribute__s in macros

code/asm/snapvector.c

@@ -30,7 +30,7 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  * See MASM snapvector.asm for commentary
  */
 
-static unsigned char ssemask[16] __attribute__((aligned(16))) =
+static unsigned char ssemask[16] Q_ALIGN(16) =
 {
 	"\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\x00\x00\x00\x00"
 };