# Working on Seo's r144 patch **URL:** \ **Category:** IronRuby\ **Created:** [September 17, 2008, 7:00pm UTC](https://www.ruby-forum.com/t/working-on-seos-r144-patch/197182 "2008-09-17T19:00:12Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![C.JSAdams-Collier](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/a698b9/32.png) [@C.JSAdams-Collier](https://www.ruby-forum.com/u/C.JSAdams-Collier)\ **Post date:** [September 17, 2008, 7:00pm UTC](https://www.ruby-forum.com/t/working-on-seos-r144-patch/197182/1 "2008-09-17T19:00:12Z")
* * * Ironruby-core mailing list removed\_email\_address@domain.invalid [http://rubyforge.org/mailman/listinfo/ironruby-core](http://rubyforge.org/mailman/listinfo/ironruby-core) ---
**Author:** ![C.JSAdams-Collier](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/a698b9/32.png) [@C.JSAdams-Collier](https://www.ruby-forum.com/u/C.JSAdams-Collier)\ **Post date:** [September 19, 2008, 10:07am UTC](https://www.ruby-forum.com/t/working-on-seos-r144-patch/197182/2 "2008-09-19T10:07:46Z")
Check out this blog post: [http://devhawk.net/2008/09/17/DLR+Namespace+Change+Fire+Drill.aspx](http://devhawk.net/2008/09/17/DLR+Namespace+Change+Fire+Drill.aspx) 2008/9/17 Seo S. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) ---
**Author:** ![C.JSAdams-Collier](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/a698b9/32.png) [@C.JSAdams-Collier](https://www.ruby-forum.com/u/C.JSAdams-Collier)\ **Post date:** [September 17, 2008, 9:52pm UTC](https://www.ruby-forum.com/t/working-on-seos-r144-patch/197182/3 "2008-09-17T21:52:59Z")
2008/9/18 C.J. Adams-Collier [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid): > Seo mentioned to the IRC channel the other day that he got r144 > building, so I thought I’d try it. I didn’t get it working, so I’ll > post my results here. Your log indicates that it builds fine up to IronRuby.dll. Now when you build IronRuby.Libraries.dll, System.Core.dll is referenced again. I believe the story goes something like this: Mono gmcs references System.Core.dll by default. Mono gmcs /noconfig avoids referencing System.Core.dll. However, ExtensionAttribute is in System.Core.dll, and due to current limitation of Mono gmcs, it needs to reference System.Core.dll in order to compile extension methods correctly. DLR does not use extension methods. IronRuby.dll uses extension methods, but none of assemblies IronRuby.dll references use extension methods. IronRuby.Libraries.dll uses extension methods, and references IronRuby.dll which uses extension methods. System.Core.dll is pulled in, classes are defined multiple times, FAIL. ---
**Author:** ![C.JSAdams-Collier](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/a698b9/32.png) [@C.JSAdams-Collier](https://www.ruby-forum.com/u/C.JSAdams-Collier)\ **Post date:** [September 19, 2008, 1:48pm UTC](https://www.ruby-forum.com/t/working-on-seos-r144-patch/197182/4 "2008-09-19T13:48:02Z")
We haven’t yet written the transformation script for IronRuby to move namespaces from System to Microsoft. It should happen soon. From: removed\_email\_address@domain.invalid [[mailto:removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)] On Behalf Of Stefan D. Sent: Friday, September 19, 2008 1:07 AM To: removed\_email\_address@domain.invalid Subject: Re: [Ironruby-core] Working on Seo’s r144 patch Check out this blog post: [http://devhawk.net/2008/09/17/DLR+Namespace+Change+Fire+Drill.aspx](http://devhawk.net/2008/09/17/DLR+Namespace+Change+Fire+Drill.aspx) 2008/9/17 Seo S. \ 2008/9/18 C.J. Adams-Collier \: > Seo mentioned to the IRC channel the other day that he got r144 > building, so I thought I’d try it. I didn’t get it working, so I’ll > post my results here. > Your log indicates that it builds fine up to IronRuby.dll. Now when you > build > IronRuby.Libraries.dll, System.Core.dll is referenced again. I believe > the story goes > something like this: Mono gmcs references System.Core.dll by default. Mono gmcs /noconfig avoids referencing System.Core.dll. However, ExtensionAttribute is in System.Core.dll, and due to current limitation of Mono gmcs, it needs to reference System.Core.dll in order to compile extension methods correctly. DLR does not use extension methods. IronRuby.dll uses extension methods, but none of assemblies IronRuby.dll references use extension methods. IronRuby.Libraries.dll uses extension methods, and references IronRuby.dll which uses extension methods. System.Core.dll is pulled in, classes are defined multiple times, FAIL. – Seo S.