[flang-commits] [flang] Allow overriding of CFI_MAX_RANK by conditionally setting it to 15 if… (PR #102048)

[Peter Klausler via flang-commits]

================
@@ -32,7 +32,9 @@
 /* 18.5.4 */
 #define CFI_VERSION 20240719
 
+#ifndef CFI_MAX_RANK
----------------
klausler wrote:

Since this is a user-facing interface, we don't want to make it too easy for users to try to subvert this definition for their own programs.  I suggest that you also require that a particular macro name also be defined in order to perform this override; perhaps something like

```
#if !defined CFI_MAX_RANK || !defined __OVERRIDE_CFI_MAX_RANK
...
```

That way, a naive user wanting to change CFI_MAX_RANK by simply defining it to (say) a larger number will be discouraged



https://github.com/llvm/llvm-project/pull/102048