Re: [Tinycc-devel] can't build mob branch on x86 64

[grischka]

Thomas Preud'homme wrote:
> Yes but how to detect that alloca is available to define TOK_alloca?

Why do you need to detect that?  Basically we don't detect "memcpy"
either and still use it for structure assignemts.

> > tcctest.c is not part of the tcc source code and hence never
> > defines "TOK_alloca" (and ahould not).
> So same problem, previously only __i386__ and __x86_64__ were tested. Do you 
> have an advice for that? 

What was wrong with that?  After all tcctest.c is to test tcc, here
in particular tcc's implementation of alloca, which exists for
__i386__ and __x86_64__ (see lib/).

> I guess for the test we could detect at runtime 
> thanks to dlopen/dlsym but it seems like overkill solution.

Overkill in the sense that it would not work ;) (alloca is most
likely not in a dynamic library).

> By the way, there is a couple of bugs that could be closed in the savannah 
> BTS, namely #30457 [1] , #23851 [2], #13213 [3]. Some other bugs might also be 
> closed as well I think, like #15366 [4].

Thanks.

--- grischka

> Best regards,
>
> Thomas Preud'homme
>
> [1] http://savannah.nongnu.org/bugs/?30457
> [2] http://savannah.nongnu.org/bugs/?23851
> [3] http://savannah.nongnu.org/bugs/?13213
> [4] http://savannah.nongnu.org/bugs/?15366