Re: [Machinekit] Compiling custom HAL driver in C

[schoone...@btinternet.com]

On 20/07/16 22:05, Michael Labuda wrote: Hi, I am trying to build a driver in C to communicate with a VFD unit (Get status info, etc.) using a serial interface. I have the code responsible for the communication to the drive located in a separate static library (.a) file. The HAL driver file is only one c source file which I would like to compile using comp, but comp does not (to my knowledge anyway) allow me to specify any linker parameters so that I can link against my library file. Any ideas on how I can make this work? Sorry, didn't see this when it was posted, my ISP has been rather unreliable recently There are 2 undocumented options in comp which assist here. I proposed a change some years ago in linuxcnc, which was then changed to something more `jeppleresque` but that got carried over when the Machinekit project was forked. https://github.com/machinekit/machinekit/blob/master/src/hal/utils/comp.g#L663 shows how extra arguments can be injected into the build of userspace components Example: If you have in your .comp file option extra_compile_args = "02" option extra_link_args = "-L/usr/local/lib/mylibs -lmylib" for instance The code would be compiled with optimisation (not recommended generally) and linked against /usr/local/lib/mylibs/libmylib.so Hope this helps Thanks, Michael -- website: http://www.machinekit.io blog: http://blog.machinekit.io github: https://github.com/machinekit --- You received this message because you are subscribed to the Google Groups "Machinekit" group. To unsubscribe from this group and stop receiving emails from it, send an email to machinekit+unsubscr...@googlegroups.com. Visit this group at https://groups.google.com/group/machinekit. For more options, visit https://groups.google.com/d/optout. -- website: http://www.machinekit.io blog: http://blog.machinekit.io github: https://github.com/machinekit --- You received this message because you are subscribed to the Google Groups "Machinekit" group. To unsubscribe from this group and stop receiving emails from it, send an email to machinekit+unsubscr...@googlegroups.com. Visit this group at https://groups.google.com/group/machinekit. For more options, visit https://groups.google.com/d/optout.