Core(A): Fixed -Wundef warning in GCC compiler header when accessing __ARM_NEON on non-NEON devices.
@@ -642,7 +642,7 @@ __STATIC_INLINE void __FPU_Enable(void)
" VMOV D14,R2,R2 \n"
" VMOV D15,R2,R2 \n"
-#if __ARM_NEON == 1
+#if (defined(__ARM_NEON) && (__ARM_NEON == 1))
//Initialise D32 registers to 0
" VMOV D16,R2,R2 \n"
" VMOV D17,R2,R2 \n"
