Forum: Ruby-Gnome 2 Can't build with ruby 1.9

Hello,

I can't build ruby-gstreamer from ruby-gnome2 0.19.4 with ruby
1.9.1p376.

I can build ruby-glib from the very same package but not gstreamer.

Also I can build gstreamer bindings just fine for ruby 1.8.

See build log in attachment.

I'm not good in C/C++. Can anybody help me to solve this problem?


Regards,
Alex

I can't be certain about this, and maybe someone else here would have a
better idea, but there's a missing export for a function of rbobj_* 
which
is probably a core function used throughout the Ruby GStreamer bindings.
This could come from libruby1.9.so, or it could come from some other 
core
component that has been specifically written for the Ruby GStreamer
bindings.

Someone else would have to guide you, but this is just a start, it's an
un-resolved export, that the GCC Compiler tool chain can't find  in any 
of
the included symbol files / object files / shared object files, and it 
is
needed in order to execute.

On Sat, May 1, 2010 at 5:28 PM, Alexander Mankuta <

Thanks Mario for response,

As far as I can tell all the missing symbols are defined in glib 
bindings in the same ruby-gnome2 package.

I see them defined in glib/src/rbgobject.h But I don't know how to point 
gcc to pick them there.

Mario Steele wrote:
> I can't be certain about this, and maybe someone else here would have a
> better idea, but there's a missing export for a function of rbobj_* 
> which
> is probably a core function used throughout the Ruby GStreamer bindings.
> This could come from libruby1.9.so, or it could come from some other 
> core
> component that has been specifically written for the Ruby GStreamer
> bindings.
> 
> Someone else would have to guide you, but this is just a start, it's an
> un-resolved export, that the GCC Compiler tool chain can't find  in any 
> of
> the included symbol files / object files / shared object files, and it 
> is
> needed in order to execute.
> 
> On Sat, May 1, 2010 at 5:28 PM, Alexander Mankuta <

Hi.

I have had trouble building ruby-gnome2 with ruby 1.9 after a build
using ruby 1.8. To resolve it I use "make distclean".

2010/5/2, Alexander Mankuta <ruby-forum-incoming@andreas-s.net>:

Hi Vincent,

This is not the case. I try to build it clean for ruby 1.9. I mentioned 
1.8 only to emphasis that this problem is probably connected with 
version of ruby I'm building for.

Vincent Carmona wrote:
> Hi.
> 
> I have had trouble building ruby-gnome2 with ruby 1.9 after a build
> using ruby 1.8. To resolve it I use "make distclean".
> 
> 2010/5/2, Alexander Mankuta <ruby-forum-incoming@andreas-s.net>:

OK. I've found a solution.

It looks like gstreamer bindings couldn't find glib2.so. The solution is 
to point linker where to find the lib. I'm using Gentoo portage to 
install bindings so it means glib2.so is already in ruby site dir, hence 
the patch pointing there. In general case, I think extconf.rb should 
look for it either in TOPDIR/glib or in ruby site dir and add the path 
that exists to libs list.

Sorry if this not correct solution. It works for me and I hope it may 
work for others.


Regards,
Alex

Hi,

In <c71d1e3531ab79b6e3823190bf409364@ruby-forum.com>
  "Re: [ruby-gnome2-devel-en] Can't build with ruby 1.9" on Wed, 5 May 
2010 18:23:40 +0200,
  Alexander Mankuta <ruby-forum-incoming@andreas-s.net> wrote:

> work for others.
Thanks for your work.
Could you also show mkmf.log?
We want to remove '-Wl,--no-undefined' instead of adding
-lglib2. If we can't remove '-Wl,--no-undefined', we will
add -lglib2.

Thanks,
--
kou

Here's mkmf.log of patched extconf.rb. Tell me if you want one of 
unpatched.


Regards,
Alex

Kouhei Sutou wrote:
> Hi,
> 
> In <c71d1e3531ab79b6e3823190bf409364@ruby-forum.com>
>   "Re: [ruby-gnome2-devel-en] Can't build with ruby 1.9" on Wed, 5 May 
> 2010 18:23:40 +0200,
>   Alexander Mankuta <ruby-forum-incoming@andreas-s.net> wrote:
> 
>> work for others.
> Thanks for your work.
> Could you also show mkmf.log?
> We want to remove '-Wl,--no-undefined' instead of adding
> -lglib2. If we can't remove '-Wl,--no-undefined', we will
> add -lglib2.
> 
> Thanks,
> --
> kou

Hi,

In <ae7b91fc5b328c06d7d3b81f6cd4520d@ruby-forum.com>
  "Re: [ruby-gnome2-devel-en] Can't build with ruby 1.9" on Thu, 6 May 
2010 08:16:20 +0200,
  Alexander Mankuta <ruby-forum-incoming@andreas-s.net> wrote:

> Here's mkmf.log of patched extconf.rb. Tell me if you want one of 
> unpatched.

Thanks.
It seems that Ruby uses -no-undefined option.

Uhm... With your patch, we need to install Ruby/GLib2 before
building Ruby/GStreamer...

We need more better way.

--
kou

Yeah, I know.

As I mentioned before it's acceptable for my case. I use Gentoo portage. 
It breaks up ruby-gnome2 to individual packages and tracks dependencies 
for itself. So by the time of ruby-gstreamer installation ruby-glib2 is 
already installed.

I'm not sure how to fix it for more general case. Currently, building 
ruby-gstreamer doesn't trigger ruby-glib2 build. So it's possible to 
have a system without single instance of glib2.so.

I'd like to help but my knowledge on this topic is very short.

Kouhei Sutou wrote:
> Hi,
> 
> In <ae7b91fc5b328c06d7d3b81f6cd4520d@ruby-forum.com>
>   "Re: [ruby-gnome2-devel-en] Can't build with ruby 1.9" on Thu, 6 May 
> 2010 08:16:20 +0200,
>   Alexander Mankuta <ruby-forum-incoming@andreas-s.net> wrote:
> 
>> Here's mkmf.log of patched extconf.rb. Tell me if you want one of 
>> unpatched.
> 
> Thanks.
> It seems that Ruby uses -no-undefined option.
> 
> Uhm... With your patch, we need to install Ruby/GLib2 before
> building Ruby/GStreamer...
> 
> We need more better way.
> 
> --
> kou

Hi,

In <4053ab0a86394e121e8d6335708a05ae@ruby-forum.com>
  "Re: [ruby-gnome2-devel-en] Can't build with ruby 1.9" on Sat, 8 May 
2010 08:30:28 +0200,
  Alexander Mankuta <ruby-forum-incoming@andreas-s.net> wrote:

> 
> I'd like to help but my knowledge on this topic is very short.

What about this patch?
Note: You need to reinstall Ruby/GLib and rerun extconf.rb
of Ruby/GStreamer.

Index: glib/src/lib/mkmf-gnome2.rb
===================================================================
--- glib/src/lib/mkmf-gnome2.rb  (revision 3768)
+++ glib/src/lib/mkmf-gnome2.rb  (working copy)
@@ -81,6 +81,8 @@
 #    else
 #      STDOUT.print "no\n"
 #    end
+  else
+    $DLDFLAGS.gsub!(/\s-Wl,--no-undefined\s/, '')
   end

   nil

Thanks,
--
kou

Hi,
on Gentoo the current ebuilds (0.19.4)in the portage tree have only
ruby18 target.
ho you build for 1.9 by hand or via your modified ebuilds?
thanks
Balint

I have few modified ebuilds.
It just adds one more ruby target. And a patch.

Dobai-Pataky Bálint wrote:
> Hi,
> on Gentoo the current ebuilds (0.19.4)in the portage tree have only
> ruby18 target.
> ho you build for 1.9 by hand or via your modified ebuilds?
> thanks
> Balint

PS: Sorry Kouhei, had no time to check your patch. I'll do in a day or 
two.