issue with mqtt lib

[trollkarlen]

Tried convert paho without success
https://github.com/eclipse/paho.mqtt.c

$ v run $HOME/.vmodules/c2v -d trace_verbose paho.mqtt.c/src
C to V translator 0.3.1
"paho.mqtt.c/src" is a directory, processing all C files in it recursively...

  translating ./MQTTProtocolClient.c ... C++ top level
&Node{
    id: '0x7fc2c18c4e98'
    kind_str: 'EmptyDecl'
    location: NodeLocation{
        offset: 19335
        file: ''
        line: 425
        source_file: SourceFile{
            path: './Socket.h'
        }
        spelling_file: SourceFile{
            path: ''
        }
    }
    range: Range{
        begin: Begin{
            spelling_file: SourceFile{
                path: ''
            }
        }
    }
    previous_declaration: ''
    name: ''
    ast_type: AstJsonType{
        desugared_qualified: ''
        qualified: ''
    }
    class_modifier: ''
    tags: ''
    initialization_type: ''
    value: ''
    value_number: 0
    opcode: ''
    ast_argument_type: AstJsonType{
        desugared_qualified: ''
        qualified: ''
    }
    array_filler: []
    declaration_id: ''
    label_id: ''
    is_postfix: false
    ast_line_nr: 0
    inner: []
    ref_declaration: RefDeclarationNode{
        kind_str: ''
        name: ''
        kind: BAD
    }
    kind: BAD
    current_child_id: 0
    is_builtin_type: false
    redeclarations_count: 0
}

Added a print because the error messages before this was very very sparse :)
The error messages when failing here can be improved.