Date: Sat, 16 Mar 2013 16:24:44 -0400 (EDT) From: Benjamin Kaduk <kaduk@MIT.EDU> To: =?ISO-8859-15?Q?Elias_M=E5rtenson?= <lokedhs@gmail.com> Cc: freebsd-current@freebsd.org Subject: Re: Strange error when compiling minimal GSSAPI application Message-ID: <alpine.GSO.1.10.1303161611080.9389@multics.mit.edu> In-Reply-To: <CADtN0WKxSYwrOzzsfNNnSXE1aAC-No0CGCFHf0BKFdCez_z%2B9w@mail.gmail.com> References: <CADtN0WKxSYwrOzzsfNNnSXE1aAC-No0CGCFHf0BKFdCez_z%2B9w@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
This message is in MIME format. The first part should be readable text,
while the remaining parts are likely unreadable without MIME-aware tools.
---559023410-362651775-1363465485=:9389
Content-Type: TEXT/PLAIN; charset=ISO-8859-15; format=flowed
Content-Transfer-Encoding: QUOTED-PRINTABLE
On Sat, 16 Mar 2013, Elias M=E5rtenson wrote:
> Is there a problem with the GSSAPI implementation in FreeBSD?
There might be; I can't remember if I had trouble with it in my current=20
application even before I started using the gss_pseudo_random feature=20
which it does not support (which caused me to switch to the MIT krb5=20
implementation).
> I'm trying to compile a minimal application that does nothing more than
> including the file gssapi/gssapi_krb5.h:
>
> #include <gssapi/gssapi_krb5.h>
>
> int main(void)
> {
> return 0;
> }
You do not mention which version of FreeBSD you are using.
> When compiling this with "gcc foo.c" I get the following error:
>
> In file included from foo.c:1:
> /usr/include/gssapi/gssapi_krb5.h:139: error: expected declaration
> specifiers or '...' before 'time_t'
I find that clang's warning/error messages are frequently more helpful=20
than gcc's. Running the same experiment on my 10-current (r247267) setup=
=20
I get a somewhat different error:
/usr/include/gssapi/gssapi_krb5.h:56: error: expected '=3D', ',', ';', 'asm=
'=20
or '__attribute__' before 'extern'
It seems that GSSAPI_CPP_START is never defined, for one.
> I have to admit that I'm a bit stumped as to why I get the error message =
in
> the first place. The line in question looks like this:
>
> OM_uint32
> gsskrb5_extract_authtime_from_sec_context(OM_uint32 *, gss_ctx_id_t,
> time_t *);
>
> I checked the preprocessor output and there are indeed correct typedefs f=
or
> OM_uint32, gss_ctx_id_t and time_t, so I can't really see why this error
> would occur.
The previous line may also be relevant. You do not have any=20
GSSAPI_LIB_FUNCTION or GSSAPI_LIB_CALL macros in the type specification of=
=20
the function, though? (I do.)
> In any case, given the import program, this behaviour isn't really correc=
t
> as far as I can tell.
>
> Any input on this?
The provided gssapi_krb5 support is certainly suboptimal -- including the=
=20
header at all gives a warning that it uses the deprecated path "gssapi.h"=
=20
to get the generic gssapi declarations. Might be, it needs further love.
-Ben Kaduk
---559023410-362651775-1363465485=:9389--
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?alpine.GSO.1.10.1303161611080.9389>