clisp-devel

DBus module foreign function warnings

[Jerry J. <log...@gm...>]

Greetings,

While compiling mercurial head (34f69a3fbf80) on an x86_64 Fedora
Rawhide machine with dbus 1.12.0, I get the following warnings when
building the dbus module:

;; Loading file /builddir/build/BUILD/clisp-2.49.60/build/dbus/dbus.fas ...
WARNING: FFI::FIND-FOREIGN-FUNCTION: foreign function
         "dbus_message_set_serial" does not exist
         Skip foreign function creation
WARNING: FFI::FIND-FOREIGN-FUNCTION: foreign function "dbus_message_lock" does
         not exist
         Skip foreign function creation
WARNING: FFI::FIND-FOREIGN-FUNCTION: foreign function
         "dbus_message_demarshal_bytes_needed" does not exist
         Skip foreign function creation
WARNING: FFI::FIND-FOREIGN-FUNCTION: foreign function
         "dbus_connection_get_adt_audit_session_data" does not exist
         Skip foreign function creation
;; Loaded file /builddir/build/BUILD/clisp-2.49.60/build/dbus/dbus.fas

All 4 functions do exist in libdbus-1.so, according to readelf.  There
are prototypes for the first 3 in dbus-message.h, and in
dbus-connection.h for the last one.   Is this something I should worry
about?  Is there some way of determining why clisp thinks those
functions don't exist?

Thanks,
-- 
Jerry James
http://www.jamezone.org/

Re: DBus module foreign function warnings

[Sam S. <sd...@gn...>]

Hi Jerry,

> * Jerry James <ybtnawreel@tznvy.pbz> [2018-01-25 19:56:43 -0700]:
>
> While compiling mercurial head (34f69a3fbf80) on an x86_64 Fedora
> Rawhide machine with dbus 1.12.0, I get the following warnings when
> building the dbus module:
>
> ;; Loading file /builddir/build/BUILD/clisp-2.49.60/build/dbus/dbus.fas ...
> WARNING: FFI::FIND-FOREIGN-FUNCTION: foreign function
>          "dbus_message_set_serial" does not exist
>          Skip foreign function creation
> WARNING: FFI::FIND-FOREIGN-FUNCTION: foreign function "dbus_message_lock" does
>          not exist
>          Skip foreign function creation
> WARNING: FFI::FIND-FOREIGN-FUNCTION: foreign function
>          "dbus_message_demarshal_bytes_needed" does not exist
>          Skip foreign function creation
> WARNING: FFI::FIND-FOREIGN-FUNCTION: foreign function
>          "dbus_connection_get_adt_audit_session_data" does not exist
>          Skip foreign function creation
> ;; Loaded file /builddir/build/BUILD/clisp-2.49.60/build/dbus/dbus.fas
>
> All 4 functions do exist in libdbus-1.so, according to readelf.  There
> are prototypes for the first 3 in dbus-message.h, and in
> dbus-connection.h for the last one.  Is this something I should worry
> about?  Is there some way of determining why clisp thinks those
> functions don't exist?

Take a look at build/dbus/dbus.c and search for, say,
dbus_connection_get_adt_audit_session_data.
You will see that it is surrounded with
#if defined(HAVE_DBUS_CONNECTION_GET_ADT_AUDIT_SESSION_DATA)
and this is why you get the warning.

Now you need to figure out why configure does not define these constant.
It appears that they are not even mentioned in configure.in.

This is weird.
Let me look into this...

-- 
Sam Steingold (http://sds.podval.org/) on darwin Ns 10.3.1561
http://steingoldpsychology.com http://www.childpsy.net https://jihadwatch.org
http://thereligionofpeace.com http://camera.org http://islamexposedonline.com
The difference between theory and practice is that in theory there isn't any.

Re: DBus module foreign function warnings

[Sam S. <sd...@gn...>]

> * Sam Steingold <fq...@ta...t> [2018-01-26 09:17:03 -0500]:
>
>> * Jerry James <ybtnawreel@tznvy.pbz> [2018-01-25 19:56:43 -0700]:
>>
>> While compiling mercurial head (34f69a3fbf80) on an x86_64 Fedora
>> Rawhide machine with dbus 1.12.0,

Are you actually using this module for something or is it just a
maintenance exercise?

> Let me look into this...

Fixed, thanks.

-- 
Sam Steingold (http://sds.podval.org/) on darwin Ns 10.3.1561
http://steingoldpsychology.com http://www.childpsy.net http://mideasttruth.com
http://camera.org http://www.memritv.org http://memri.org https://ffii.org
A bullet affects the way the brain functions even when it hits the butt.

Re: DBus module foreign function warnings

[Jerry J. <log...@gm...>]

On Fri, Jan 26, 2018 at 8:39 AM, Sam Steingold <sd...@gn...> wrote:
> Are you actually using this module for something or is it just a
> maintenance exercise?

Just a maintenance exercise.  When I build packages for Fedora, I look
for warnings, because they often indicate that either I am doing
something wrong, or something is amiss with the package itself.

> Fixed, thanks.

Thank you!  Regards,
-- 
Jerry James
http://www.jamezone.org/