Enable new warning for fragile/incorrect CPP #if usage
[ghc.git] / rts / sm / MBlock.c
index f6640d1..833dd8c 100644 (file)
@@ -657,7 +657,7 @@ initMBlocks(void)
 #ifdef USE_LARGE_ADDRESS_SPACE
     {
         W_ size;
-#if aarch64_HOST_ARCH
+#ifdef aarch64_HOST_ARCH
         size = (W_)1 << 38; // 1/4 TByte
 #else
         size = (W_)1 << 40; // 1 TByte