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    [Tutorial] SketchUp Ruby C Extension

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    • J Offline
      jefftrull
      last edited by

      Today I made a startling discovery: the plugin I built under VS2010 against the 1.8.6-p287 mswin Ruby will load and run without changes in the 1.8.7-p334 mingw build. So the Ruby version and compiler both mismatch, and yet everything works. I'm dumbfounded but delighted, and my previous question is now moot.

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      • thomthomT Offline
        thomthom
        last edited by

        πŸ‘ πŸ˜„

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

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        • thomthomT Offline
          thomthom
          last edited by

          @thomthom said:

          Btw, does anyone know how one can make extconf.rb and make/nmake output their files to a given folder? I'd like to make it so that each platform outputs its generated files to separate directories.

          Anyone know how to achieve this?

          Making it so that when I build and compile under Windows everything is placed in a "win32" folder and "osx" when using OSX?
          Or rather, to clarify, I know how to do conditionals - just don't know how to control where the generated files are output.

          Thomas Thomassen β€” 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

            and you are compiling from the commandline, not from within the Visual Studio GUI interface, correct ?

            I'm not here much anymore.

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            • thomthomT Offline
              thomthom
              last edited by

              Currently using nmake that comes with MS VS C++.

              And I'm using a extconf.rb with mkfm to generate the makefile.

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

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              • thomthomT Offline
                thomthom
                last edited by

                Is it possible to build an Ruby C Extension under Windows that doesn't require additional libraries? When using Visual C++ to build the extensions require the C++ runtime library.

                Thomas Thomassen β€” 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. my old example did that. best is to check the DLL imports section to see what functions it requires

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

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                  • thomthomT Offline
                    thomthom
                    last edited by

                    @unknownuser said:

                    yes. my old example did that. best is to check the DLL imports section to see what functions it requires
                    Ah, the Pelles C project! Is it possible to use to to just compile the C source without creating a project? (just trying to find a solution without creating too many extra project files.)

                    Thomas Thomassen β€” 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:

                      Is it possible to use to to just compile the C source without creating a project? (just trying to find a solution without creating too many extra project files

                      the .ppj file is just a collection of commands. you can easily convert it to a .bat file if you dont want to have extra files (remember to create the .def file for the .dll link)

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

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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 β€” 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 β€” 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 β€” 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 β€” 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 β€” 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 πŸ˜„ 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 β€” 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... πŸ˜’

                                        Thomas Thomassen β€” 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.)

                                          πŸ’­

                                          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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