perl_c.c: Fix declaration of argv

In GCC 14:

perl_c.c: In function ‘perl4caml_init’:
perl_c.c:97:25: error: passing argument 2 of ‘Perl_sys_init’ from incompatible pointer type [-Wincompatible-pointer-types]
   97 |   PERL_SYS_INIT (&argc, &argv);
      |                         ^~~~~
      |                         |
      |                         char * (*)[5]
/usr/lib64/perl5/CORE/perl.h:3608:61: note: in definition of macro ‘PERL_SYS_INIT’
 3608 | #define PERL_SYS_INIT(argc, argv)       Perl_sys_init(argc, argv)
      |                                                             ^~~~
In file included from /usr/lib64/perl5/CORE/perl.h:6188:
/usr/lib64/perl5/CORE/proto.h:4992:34: note: expected ‘char ***’ but argument is of type ‘char * (*)[5]’
 4992 | Perl_sys_init(int *argc, char ***argv);
      |                          ~~~~~~~~^~~~

diff --git a/perl_c.c b/perl_c.c
index ce53667..83f9332 100644 (file)
--- a/perl_c.c
+++ b/perl_c.c
@@ -94,7 +94,7 @@ perl4caml_init (value unit)
   int argc = 4;
   static char *argv[] = { "", "-w", "-e", "0", NULL };
 
-  PERL_SYS_INIT (&argc, &argv);
+  PERL_SYS_INIT (&argc, (char ***) &argv);
   my_perl = perl_alloc ();
   perl_construct (my_perl);
   PL_exit_flags |= PERL_EXIT_DESTRUCT_END;