# Can't build with ruby 1.9 **URL:** \ **Category:** Ruby-Gnome 2\ **Created:** [May 1, 2010, 11:28pm UTC](https://www.ruby-forum.com/t/cant-build-with-ruby-1-9/187912 "2010-05-01T23:28:59Z")\ **Posts on this page:** 13\ **Page:** 1
**Author:** ![alexander](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/bc8723/32.png) [@alexander](https://www.ruby-forum.com/u/alexander)\ **Post date:** [May 1, 2010, 11:28pm UTC](https://www.ruby-forum.com/t/cant-build-with-ruby-1-9/187912/1 "2010-05-01T23:28:59Z")
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 ---
**Author:** ![alexander](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/bc8723/32.png) [@alexander](https://www.ruby-forum.com/u/alexander)\ **Post date:** [May 2, 2010, 12:14am UTC](https://www.ruby-forum.com/t/cant-build-with-ruby-1-9/187912/2 "2010-05-02T00:14:24Z")
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 M. \< ---
**Author:** ![alexander](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/bc8723/32.png) [@alexander](https://www.ruby-forum.com/u/alexander)\ **Post date:** [May 2, 2010, 12:50am UTC](https://www.ruby-forum.com/t/cant-build-with-ruby-1-9/187912/3 "2010-05-02T00:50:47Z")
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 S. 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 M. \< ---
**Author:** ![alexander](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/bc8723/32.png) [@alexander](https://www.ruby-forum.com/u/alexander)\ **Post date:** [May 2, 2010, 7:45pm UTC](https://www.ruby-forum.com/t/cant-build-with-ruby-1-9/187912/4 "2010-05-02T19:45:29Z")
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 M. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid): ---
**Author:** ![alexander](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/bc8723/32.png) [@alexander](https://www.ruby-forum.com/u/alexander)\ **Post date:** [May 4, 2010, 12:11am UTC](https://www.ruby-forum.com/t/cant-build-with-ruby-1-9/187912/5 "2010-05-04T00:11:36Z")
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 C. 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 M. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid): ---
**Author:** ![alexander](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/bc8723/32.png) [@alexander](https://www.ruby-forum.com/u/alexander)\ **Post date:** [May 5, 2010, 6:23pm UTC](https://www.ruby-forum.com/t/cant-build-with-ruby-1-9/187912/6 "2010-05-05T18:23:40Z")
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 ---
**Author:** ![alexander](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/bc8723/32.png) [@alexander](https://www.ruby-forum.com/u/alexander)\ **Post date:** [May 6, 2010, 12:18am UTC](https://www.ruby-forum.com/t/cant-build-with-ruby-1-9/187912/7 "2010-05-06T00:18:34Z")
Hi, In [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) “Re: [ruby-gnome2-devel-en] Can’t build with ruby 1.9” on Wed, 5 May 2010 18:23:40 +0200, Alexander M. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) 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 ---
**Author:** ![alexander](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/bc8723/32.png) [@alexander](https://www.ruby-forum.com/u/alexander)\ **Post date:** [May 6, 2010, 8:16am UTC](https://www.ruby-forum.com/t/cant-build-with-ruby-1-9/187912/8 "2010-05-06T08:16:20Z")
Here’s mkmf.log of patched extconf.rb. Tell me if you want one of unpatched. Regards, Alex Kouhei S. wrote: > Hi, > > In [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) > “Re: [ruby-gnome2-devel-en] Can’t build with ruby 1.9” on Wed, 5 May > 2010 18:23:40 +0200, > Alexander M. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) 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 ---
**Author:** ![alexander](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/bc8723/32.png) [@alexander](https://www.ruby-forum.com/u/alexander)\ **Post date:** [May 8, 2010, 8:30am UTC](https://www.ruby-forum.com/t/cant-build-with-ruby-1-9/187912/9 "2010-05-08T08:30:28Z")
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 S. wrote: > Hi, > > In [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) > “Re: [ruby-gnome2-devel-en] Can’t build with ruby 1.9” on Thu, 6 May > 2010 08:16:20 +0200, > Alexander M. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) 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 ---
**Author:** ![alexander](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/bc8723/32.png) [@alexander](https://www.ruby-forum.com/u/alexander)\ **Post date:** [May 9, 2010, 2:45am UTC](https://www.ruby-forum.com/t/cant-build-with-ruby-1-9/187912/10 "2010-05-09T02:45:46Z")
Hi, In [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) “Re: [ruby-gnome2-devel-en] Can’t build with ruby 1.9” on Sat, 8 May 2010 08:30:28 +0200, Alexander M. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) 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 ---
**Author:** ![alexander](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/bc8723/32.png) [@alexander](https://www.ruby-forum.com/u/alexander)\ **Post date:** [May 10, 2010, 8:45pm UTC](https://www.ruby-forum.com/t/cant-build-with-ruby-1-9/187912/11 "2010-05-10T20:45:37Z")
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 ---
**Author:** ![alexander](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/bc8723/32.png) [@alexander](https://www.ruby-forum.com/u/alexander)\ **Post date:** [May 8, 2010, 4:53am UTC](https://www.ruby-forum.com/t/cant-build-with-ruby-1-9/187912/12 "2010-05-08T04:53:00Z")
Hi, In [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) “Re: [ruby-gnome2-devel-en] Can’t build with ruby 1.9” on Thu, 6 May 2010 08:16:20 +0200, Alexander M. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) 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 ---
**Author:** ![alexander](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/bc8723/32.png) [@alexander](https://www.ruby-forum.com/u/alexander)\ **Post date:** [May 10, 2010, 8:51pm UTC](https://www.ruby-forum.com/t/cant-build-with-ruby-1-9/187912/13 "2010-05-10T20:51:34Z")
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.