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    [Tutorial] SketchUp Ruby C Extension

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    • thomthomT Offline
      thomthom
      last edited by

      Do you remember the cause of the C:\ruby\src\ruby-1.8.6-p111\missing.h(71): error #1050: Redefinition of macro 'isinf'. error? And can you explain what your workaround actually do?

      Trying to set up a project myself so I actually understand this.

      Thomas Thomassen — SketchUp Monkey & Coding addict
      List of my plugins and link to the CookieWare fund

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      • thomthomT Offline
        thomthom
        last edited by

        And why is the macro redefinition just a warning for this guy, but an error in Pelles C?
        https://github.com/barrie0482/rrdruby_win32_build/wiki

        Thomas Thomassen — SketchUp Monkey & Coding addict
        List of my plugins and link to the CookieWare fund

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        • thomthomT Offline
          thomthom
          last edited by

          hm... there is an msvcrt-ruby18.dll in the SketchUp folder - can I make my Visual Studio C++ project rely on this instead? So when the C Extension loads under SketchUp Ruby the runtime is there - installed by SketchUp. ??

          Thomas Thomassen — SketchUp Monkey & Coding addict
          List of my plugins and link to the CookieWare fund

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          • thomthomT Offline
            thomthom
            last edited by

            @unknownuser said:

            @unknownuser said:

            And can you explain what your workaround actually do?

            isinf is already defined in PellesC libraries so there is no need to include that file again.

            But I am not including it myself - it's an error that comes from the Ruby missing.h file... :S

            
            Building hello_world.obj.
            Use <stdlib.h> instead of non-standard <malloc.h>
            C;\ruby\src\ruby-1.8.6-p111\missing.h(71); error #1050; Redefinition of macro 'isinf'.
            *** Error code; 1 ***
            Done.
            
            

            Thomas Thomassen — SketchUp Monkey & Coding addict
            List of my plugins and link to the CookieWare fund

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            • thomthomT Offline
              thomthom
              last edited by

              @unknownuser said:

              http://msdn.microsoft.com/en-us/library/windows/desktop/ms682586(v=vs.85).aspx - the DLL is already loaded by Sketchup so it will use that version.

              When compiling with Pelles C, right? Any way to make VC++'s nmake rely on the bundled SketchUp CRT instead of the VSC++ CRT? (splitting my quest into two projects here...)

              Thomas Thomassen — SketchUp Monkey & Coding addict
              List of my plugins and link to the CookieWare fund

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              • tbdT Offline
                tbd
                last edited by

                @unknownuser said:

                And can you explain what your workaround actually do?

                isinf is already defined in PellesC libraries so there is no need to include that file again.

                http://msdn.microsoft.com/en-us/library/windows/desktop/ms682586(v=vs.85).aspx - the DLL is already loaded by Sketchup so it will use that version. also you can copy the msvcrt-ruby18.dll in your dev directory to be picked up when debugging outside Sketchup (which I hope you do, otherwise dev time is slooooow)

                SketchUp Ruby Consultant | Podium 1.x developer
                http://plugins.ro

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                • tbdT Offline
                  tbd
                  last edited by

                  @thomthom said:

                  But I am not including it myself - it's an error that comes from the Ruby missing.h file... :S

                  that's why you need to have #define HAVE_ISINF 1 in your code, so that Ruby will not double include

                  @unknownuser said:

                  Any way to make VC++'s nmake rely on the bundled SketchUp CRT instead of the VSC++ CRT? (splitting my quest into two projects here...)

                  compile with the same VC 😄 or dont link any CRT and use a replacement static lib (there are some minimal libs on the net)

                  SketchUp Ruby Consultant | Podium 1.x developer
                  http://plugins.ro

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                  • thomthomT Offline
                    thomthom
                    last edited by

                    @unknownuser said:

                    compile with the same VC

                    _MSC_VER == 1200 = MVC 6, right? Can you get hold of that version any more?

                    @unknownuser said:

                    or dont link any CRT and use a replacement static lib (there are some minimal libs on the net)

                    Here you lost me. "linking"... another concept I need to learn.

                    Thomas Thomassen — SketchUp Monkey & Coding addict
                    List of my plugins and link to the CookieWare fund

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                    • thomthomT Offline
                      thomthom
                      last edited by

                      That is still greek to me... The only thing I compiled before these Ruby C Extensions where Visual Basic 4 applications... 😒

                      Thomas Thomassen — SketchUp Monkey & Coding addict
                      List of my plugins and link to the CookieWare fund

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                      • Dan RathbunD Offline
                        Dan Rathbun
                        last edited by

                        @thomthom said:

                        @unknownuser said:

                        or dont link any CRT and use a replacement static lib (there are some minimal libs on the net)

                        Here you lost me. "linking"... another concept I need to learn.

                        As .. in statically linked, or dynamically linked.

                        (Hence the DLL and dylib, means Dynamically Linked Library.)

                        💭

                        I'm not here much anymore.

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                        • tbdT Offline
                          tbd
                          last edited by

                          if you want to have fun - http://www.benshoof.org/blog/minicrt/

                          SketchUp Ruby Consultant | Podium 1.x developer
                          http://plugins.ro

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                          • thomthomT Offline
                            thomthom
                            last edited by

                            @dan rathbun said:

                            @thomthom said:

                            @unknownuser said:

                            or dont link any CRT and use a replacement static lib (there are some minimal libs on the net)

                            Here you lost me. "linking"... another concept I need to learn.

                            As .. in statically linked

                            hmm... so I could take my C Extension made with VC++'s nmake and statically link the RT - avoiding having to bundle it or require the users to install any additional RT?

                            Thomas Thomassen — SketchUp Monkey & Coding addict
                            List of my plugins and link to the CookieWare fund

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                            • tbdT Offline
                              tbd
                              last edited by

                              yes. the dll were created to solve the duplicate code problem but they created another problem - the DLL hell.

                              but for SU extensions having a couple of kB duplicated for the CRT is ok. also it makes the installing easier.

                              SketchUp Ruby Consultant | Podium 1.x developer
                              http://plugins.ro

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                              • thomthomT Offline
                                thomthom
                                last edited by

                                @unknownuser said:

                                but for SU extensions having a couple of kB duplicated for the CRT is ok. also it makes the installing easier.

                                And from I gathered of the Wiki article, then the DLLs are statically linked they can link just the part of the library required. ??

                                Now I need to figure out how to statically link the CRT. Is it as simple as a compiler flag?

                                Thomas Thomassen — SketchUp Monkey & Coding addict
                                List of my plugins and link to the CookieWare fund

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                                • thomthomT Offline
                                  thomthom
                                  last edited by

                                  -MT instead of -MD seem to be the one...
                                  http://stackoverflow.com/questions/8463073/nmake-vc-2010-compile-without-msvcr100-dll-depends

                                  http://msdn.microsoft.com/en-us/library/2kzt1wy3%28v=vs.80%29.aspx

                                  Thomas Thomassen — SketchUp Monkey & Coding addict
                                  List of my plugins and link to the CookieWare fund

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                                  • thomthomT Offline
                                    thomthom
                                    last edited by

                                    Changed compiler flag from -MD to -MT

                                    Thomas Thomassen — SketchUp Monkey & Coding addict
                                    List of my plugins and link to the CookieWare fund

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                                    • thomthomT Offline
                                      thomthom
                                      last edited by

                                      On a real world project, Vertex Tools:

                                      VertexToolsMT.png

                                      I can live with that. 😄 Now it "just works" on even the freshest of systems.

                                      Thomas Thomassen — SketchUp Monkey & Coding addict
                                      List of my plugins and link to the CookieWare fund

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                                      • tbdT Offline
                                        tbd
                                        last edited by

                                        @unknownuser said:

                                        the DLLs are statically linked they can link just the part of the library required. ??

                                        DLL = Dynamic Linked Library - so they cannot be statically linked (except embedding it in resource and dropping it on execute 😄 )

                                        statically linked libraries (eg. CRT.lib) should add only the used routines to the final executable.

                                        SketchUp Ruby Consultant | Podium 1.x developer
                                        http://plugins.ro

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                                        • D Offline
                                          designingcrime
                                          last edited by

                                          I have been working on a plugin to upload and download files to a webserver through http requests. I found this project on the forums a while ago but It wasn't working.

                                          Link Preview Image
                                          GitHub - danawoodman/google-sketchup-file-downloader: [NOT MAINTAINED] A generic and reusable SketchUp Ruby C extension file downloading utility to be used within SketchUp plugins.

                                          [NOT MAINTAINED] A generic and reusable SketchUp Ruby C extension file downloading utility to be used within SketchUp plugins. - danawoodman/google-sketchup-file-downloader

                                          favicon

                                          GitHub (github.com)

                                          Now I have it working and the C Extension compiled fine in Os X.

                                          I have been trying to figure out how to compile it in Windows now so that the plugin can be cross-platform. I started reading this thread but its kind of confusing for me. After following the instructions in this project (which I think are a product of this thread)

                                          404 — Bitbucket

                                          favicon

                                          (bitbucket.org)

                                          I can compile the example code here with extconf.rb and nmake. However compiling dana's extension is a bit more complicated because it links to libcurl.

                                          there is a line in extconf.rb to check for curllib

                                          Make sure the cURL library is installed.

                                          have_library("curl")

                                          its not

                                          checking for main() in curl.lib... no
                                          creating Makefile

                                          So when using nmake I get this error

                                          fatal error C1083: Cannot open include file: 'curl/types.h': No such file or directory

                                          I downloaded libcurl(curl-7.26.0-devel-mingw64, im on windows 7 and not sure which is the best)

                                          So I can't figure out how to tell nmake to include the path, or where it looks for these files.

                                          Does anyone have experience making ruby c extensions on windows and know how to include 3rd party libraries?

                                          Any help would be appreciated.

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                                          • thomthomT Offline
                                            thomthom
                                            last edited by

                                            I tried to compile Dana's library as well, but since the GiHub project doesn't include the CURL files it failed. And none of the packages I found at the CURL sitecontained the linked files. I asked Dana for which package he used, but it doesn't seem he found it again.

                                            There's another thread around here that talks about Dana's repository.

                                            Need to find out what CURL files are required.

                                            Thomas Thomassen — SketchUp Monkey & Coding addict
                                            List of my plugins and link to the CookieWare fund

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