Re: on how to compile gcc-4.6 correctly?

["Dennis, CHENG Renquan" <crquan@fedoraproject.org>]

On Mon, Sep 13, 2010 at 8:16 PM, Laurynas Biveinis
<laurynas.biveinis@gmail.com> wrote:
> I am the author of how these macros are generated, but somehow I have
> missed this thread initially. Could you send me off-list that
> gtype-desc.h file?

The problematic gtype-desc.h has been sent to Laurynas separately, I
was compiling only the gcc-core-4.6-20100911.tar.bz2 tarball, because
I only want a c compiler; I searched the macro
ggc_alloc_cleared_lang_type through out the source and build
directory, only one definition and two usage, with conflict arguments
passing:

../path/to/gcc-build$ grep -RsInw ggc_alloc_cleared_lang_type
../gcc-4.6-20100911/ gcc/
../gcc-4.6-20100911/gcc/c-decl.c:7027:  space =
ggc_alloc_cleared_lang_type (sizeof (struct lang_type));
../gcc-4.6-20100911/gcc/c-decl.c:7310:  lt =
ggc_alloc_cleared_lang_type (sizeof (struct lang_type));
gcc/gtype-desc.h:2451:#define ggc_alloc_cleared_lang_type() ((struct
lang_type *)(ggc_internal_cleared_alloc_stat (sizeof (struct
lang_type) MEM_STAT_INFO)))

and in fact, I'm interested why this Kai Ruottu got a
ggc_alloc_cleared_lang_type_u macro with 0 arguments in gtype-desc.h
while my gtype-desc.h doesn't have that macro? I'm not sure he could
get ggc_alloc_cleared_lang_type macro or not, so how can he succeed
his compilation;

On Mon, Sep 6, 2010 at 10:51 PM, Kai Ruottu <kai.ruottu@wippies.com> wrote:
> This seems to be defined in a header generated during the build
> into the $BUILD/gcc :
>
> [root@localhost gcc]# grep ggc_alloc_cleared_lang_type *.h
> gtype-desc.h:#define ggc_alloc_cleared_lang_type_u() ((union lang_type_u
> *)(ggc_internal_cleared_alloc_stat (sizeof (union lang_type_u)
> MEM_STAT_INFO)))

>
> Thanks,
> --
> Laurynas
>

--
Cheng, from Singapore