[m-users.] C compiler error

Hi.

I have a Mercury module with a lot of foreign C code, and I get many
compiler errors like this:

Making Mercury/os/mq.o
Mercury/cs/mq.c: In function ‘null_to_empty’:
Mercury/cs/mq.c:644:1: error: invalid storage class for function
‘mq_module0’
Mercury/cs/mq.c:644:1: error: invalid storage class for function
‘mq_module0’
Mercury/cs/mq.c:764:1: error: invalid storage class for function
‘mq_module1’
Mercury/cs/mq.c:764:1: error: invalid storage class for function
‘mq_module1’
...



The function in question is this:

:- pragma foreign_code("C",
"
  char * null_to_empty(char * str)
  {
    if (str == 0) {
       MR_String str1 = MR_GC_malloc(1);
       *str1 = (char) 0;
       return str1;
    } else {
       return str;
    }
").


I don't understand what those C compiler options are saying...

Volker

_______________________________________________
users mailing list
[email protected]
https://lists.mercurylang.org/listinfo/users

-----BEGIN PGP SIGNATURE-----
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=rMOt
-----END PGP SIGNATURE-----