Hello,

I am wanting to create my own C bindings to CSFML, and I have been extremely struggling with this.

There is no resources or tutorials for how to do this so I am basically on my own.

First thing I looked at was dstep which helps translate C header files to D language, so I ran dstep and translated the C header files to D language. This went well. I ended up wrapping all the code in an extern(C) call.

Now, I am trying to 'link' CSFML to my bindings but have been struggling to do so.

I tried to add the following to dub.json:

"libs": ["csfml-audio", "csfml-graphics"]

But it came back with an error:

/usr/bin/ld: /home/tom/Desktop/sfmld-backend/out/production/sfmld-backend/obj/sfmld-backend.o: in function `_Dmain':
/home/tom/Desktop/sfmld-backend/source/graphics.d:(.text._Dmain[_Dmain]+0x3a): undefined reference to `sfRenderWindow_create'
/usr/bin/ld: /home/tom/Desktop/sfmld-backend/source/graphics.d:(.text._Dmain[_Dmain]+0x58): undefined reference to `sfRenderWindow_isOpen'
/usr/bin/ld: /home/tom/Desktop/sfmld-backend/source/graphics.d:(.text._Dmain[_Dmain]+0x69): undefined reference to `sfRenderWindow_pollEvent'
/usr/bin/ld: /home/tom/Desktop/sfmld-backend/source/graphics.d:(.text._Dmain[_Dmain]+0x7c): undefined reference to `sfRenderWindow_close'
/usr/bin/ld: /home/tom/Desktop/sfmld-backend/source/graphics.d:(.text._Dmain[_Dmain]+0x90): undefined reference to `sfRenderWindow_clear'
/usr/bin/ld: /home/tom/Desktop/sfmld-backend/source/graphics.d:(.text._Dmain[_Dmain]+0x99): undefined reference to `sfRenderWindow_display'
collect2: error: ld returned 1 exit status
Error: linker exited with status 1

I am really confused as to how I even am supposed to get the library name in the first place, which is another thing that is confusing me.

Any help with this would be appreciated.

When I do run with dub I just get:

Program exited with code -11

On Saturday, 28 January 2023 at 02:40:58 UTC, thebluepandabear wrote:

It is up to the library author to choose a name. The extensions is .so/.dll/.dylib for shared libraries on nix/Windows/Mac and .a/.lib/??? for static libraries.

The second part, this looks like sfml graphics depends on sfml render or window or something like that, you'd better check readelf -d sfml-render.so | grep 'NEEDED' if you have dynamic libs to get a clue what it might need, or go search library that contains missing symbols by hand.