[Issue 24291] ImportC: cannot compile janet.c

d-bugmail at puremagic.com d-bugmail at puremagic.com
Mon Dec 25 14:20:56 UTC 2023


https://issues.dlang.org/show_bug.cgi?id=24291

anonymous4 <dfj1esp02 at sneakemail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                URL|                            |https://forum.dlang.org/pos
                   |                            |t/woaixickqgqvfsazutex at foru
                   |                            |m.dlang.org

--- Comment #2 from anonymous4 <dfj1esp02 at sneakemail.com> ---
>From forum discussion:
---
One Problem with Janet is that it uses computed gotos which is a 
gcc extension
The code it complains about looks like:
```C
     /* opcode -> label lookup if using clang/GCC */
#ifdef JANET_USE_COMPUTED_GOTOS
     static void *op_lookup[255] = {
         &&label_JOP_NOOP,
         &&label_JOP_ERROR,
```

As you can see &&label is not valid C11.
Which is what the import C parser complains about.
---

Maybe something can be done there with that JANET_USE_COMPUTED_GOTOS define.

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