Hi,

I'm trying to use dub to compile a quick experiment that uses Deimos libclang bindings, which of course requires linking against an installed libclang. I believe this is what I need to include in dub.json:

 "systemDependencies": "libclang-6.0"

But it just won't link against the lib in the compilation process. Using the -v option reveals the linking stage call:

/usr/bin/dmd -of.dub/build/application-debug-linux.posix-x86_64-dmd_2081-7C29937BC9011750CFA15D7325224156/damnc .dub/build/application-debug-linux.posix-x86_64-dmd_2081-7C29937BC9011750CFA15D7325224156/damnc.o -L--no-as-needed -g

It does not mention libclang at all. I've tried with all "clang", "libclang-6.0.so.1", but I just don't seem to be able to make it work. Would anyone mind helping me out?

BTW, I am aware Deimos bindings for libclang are based on v3.7 and not 6.0, but 3.7 is not available for Ubuntu 18.04 and I was wagering the interface probably hasn't changed much.

On Sunday, 24 June 2018 at 11:44:06 UTC, Dechcaudron wrote:
> Hi,
>
> I'm trying to use dub to compile a quick experiment that uses Deimos libclang bindings, which of course requires linking against an installed libclang. I believe this is what I need to include in dub.json:
>
>  "systemDependencies": "libclang-6.0"
>
> But it just won't link against the lib in the compilation process. Using the -v option reveals the linking stage call:
>
> /usr/bin/dmd -of.dub/build/application-debug-linux.posix-x86_64-dmd_2081-7C29937BC9011750CFA15D7325224156/damnc .dub/build/application-debug-linux.posix-x86_64-dmd_2081-7C29937BC9011750CFA15D7325224156/damnc.o -L--no-as-needed -g
>
> It does not mention libclang at all. I've tried with all "clang", "libclang-6.0.so.1", but I just don't seem to be able to make it work. Would anyone mind helping me out?
>
> BTW, I am aware Deimos bindings for libclang are based on v3.7 and not 6.0, but 3.7 is not available for Ubuntu 18.04 and I was wagering the interface probably hasn't changed much.

Hm, the description sounds like it might not be used for passing linker arguments, but serves for adding documentation to linker errors:
    "A textual description of the required system dependencies (external C libraries)
    required by the package. This will be visible on the registry and will be
    displayed in case of linker errors - this setting does not support platform
    suffixes".

What about the "libs" build settings (or "lflags")? (http://code.dlang.org/package-format?lang=json)

    "libs": "clang"

On Sunday, 24 June 2018 at 12:15:42 UTC, Timoses wrote:
> What about the "libs" build settings (or "lflags")? (http://code.dlang.org/package-format?lang=json)
>
>     "libs": "clang"

There it was, hidden in plain sight. Thanks for the extra pair of eyes Timoses. I don't know how I missed it. Successfully linking against 6.0 now.

Cheers!