Re: [ntp:hackers/Guile devel] ntp-dev changes

[Bruce Korb]

Bruce Korb wrote:

> So, it seems to me that there is an inconsistency in the build 
> environment
> and the defining of DYNAMIC_LINKING. The problem is almost certainly
> in Guile. But, I have heard complaints (that I only fuzzily remember)
> that Guile does not build with GCC-4. Assuming I am remembering
> correctly :) , the headers that GCC-4 bring along with itself are
> causing "scm_lt_dlsymlist" to be an incomplete type and 
> "scm_lt_dlpreload_default"
> to be a macro that expands to the empty string (unreferenced variable).
>
> I'll poke into this a bit more, but I do wish a Guile developer could
> chime in with a word or two. 

In guile-ltdl.h:

> typedef struct scm_i_lt_dlsymlist_struct scm_lt_dlsymlist;

In guile-ltdl.c /* NOTE: ".c" not ".h" */:

> #define SCM_INSERTED_DLSYMLIST_STRUCT_DECL scm_i_lt_dlsymlist_struct

In raw-ltdl.h:

> /* --- PRELOADED MODULE SUPPORT --- */
> /* A preopened symbol. Arrays of this type comprise the exported
> symbols for a dlpreopened module. */
> typedef struct SCM_INSERTED_DLSYMLIST_STRUCT_DECL {
> const char *name;
> lt_ptr address;
> } lt_dlsymlist;

Guile folks, please, how is this supposed to work? The guile.c module
needs to see all three of these code fragments to compile correctly.
Anyway, for me it builds with GCC 3.x and fails with 4.x, but looks
like it should fail no matter what the compiler. What gives?

Thanks - Bruce