--ldflags: command not found

[Fulgurance]

Hello, I seen today the problem with YAML error was solve. I tried to use again Qt on Gentoo, but I had again one error.

In lib/qt5/src/qt5/binding.cr:7:20

 7 | {% use_binding = run("#{__DIR__}/../../support/decide_binding_fast.cr") %}
                      ^--
Error: Error executing run (exit code: 1): '/home/zohran/Documents/Programmation/Test Crystal Qt/lib/qt5/src/qt5/../../support/decide_binding_fast.cr' 


stdout:

    


stderr:

    --: line 1: --ldflags: command not found
    Failed to find llvm version
    
    Failed to find one or more paths.  See above for details.
    Unhandled exception: Support script decide_binding_slow.cr failed (Exception)
      from ???
      from ???
      from __crystal_main
      from main
      from ???
      from __libc_start_main
      from _start
      from ???

[ppibburr]

I confirm

[docelic]

I believe this is coming from either:

qt5.cr

config/find_paths.yml:      - shell: "{LLVM_CONFIG_BINARY} --ldflags"

or bindgen:

clang/find_clang.cr:OPTIONS[:llvm_ld_flags] = output_of(OPTIONS[:llvm_config], "--ldflags")

In both cases the cause of the error is the same -- it happens because llvm-config program was not found.

It gets installed along with llvm. Please see if you have llvm and llvm-config installed, and if you do, please try to see why it is not auto-detected and found.