Re: Fix pg_dump dependency on postgres.h

Alvaro Herrera wrote:
> Zdenek Kotala wrote:
>> Zdenek Kotala wrote:
>>> Zdenek Kotala wrote:
>>>> Attached patch removes pg_dump dependency on postgres.h. The main reason
>>>> for that was discussed there:
>>>>
>>>> http://archives.postgresql.org/pgsql-hackers/2007-10/msg01261.php
>>>>
>>> I found two problems there. One is that I forgot postgres.h include in
>>> common.c. it is easy to fix. However second problem is more complicated.
>>> dumputils.c calls ScandKeywordLookup function which is defined in
>>> keyword.c. :(
>> <snip>
>>
>>> 3) Put following fake into keyword.c before include "parse.h" line. It is
>>> easiest way.
>>> #define TYPE_IS_DECLARED 1
>>> #define YYLTYPE_IS_DECLARED 1
>>> #define YYLTYPE void*
>>> #define YYSTYPE void*
>> New version of patch is attached. I selected variant 3 as a best solution.
>> Patch also fix some other postgres.h dependencyin another tools such as
>> pg_controldata, pg_config. The last unfixed tool is pg_resetxlog which
>> deserves own patch.
>
> Humm, but YYLTYPE is defined in gramparse.h (and as a different type)
> ...  Also, I see that if you define YYLTYPE then you don't need
> YYLTYPE_IS_DECLARED as well.  Also I don't see any TYPE_IS_DECLARED
> here.  What I'm thinking is that this patch is not very portable :-(

Thanks you for your comments.

You are right, define YYLTYPE and YYSTYPE is enough to skip
union/structure definition.  I think, data type is not important for
this purpose, but use int instead of void* seem good idea. It will be
synchronized with gramparse.h.

What do you mean "not very portable"? What could be problem there?

        Zdenek