Unhandled expr() node {DeprecatedAttr}

[maxux]

Trying to convert this file:
https://github.com/freeflowuniverse/crystallib/blob/development-secp256k1/keysafe/secp256k1/secp256k1mod.c

Result in this:

C to V translator 0.3.1
  translating secp256k1mod.c  ... 

Unhandled expr() node {DeprecatedAttr} (ast line nr node.ast_line_nr "secp256k1mod.c"):
&Node{
    id: '0x1a17e50'
    kind_str: 'DeprecatedAttr'
    location: NodeLocation{
        offset: 0
        file: ''
        line: 0
        source_file: SourceFile{
            path: ''
        }
        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
    inner: []
    ref_declaration: RefDeclarationNode{
        kind_str: ''
        name: ''
        kind: BAD
    }
    kind: DeprecatedAttr
    current_child_id: 0
    is_builtin_type: false
    redeclarations_count: 0
}
/tmp/v_0/c2v.5510435663505860637.tmp.c:11676: at print_backtrace: Backtrace
/tmp/v_0/c2v.5510435663505860637.tmp.c:30720: by main__C2V_expr
/tmp/v_0/c2v.5510435663505860637.tmp.c:30381: by main__C2V_global_var_decl
/tmp/v_0/c2v.5510435663505860637.tmp.c:31018: by main__C2V_top_level
/tmp/v_0/c2v.5510435663505860637.tmp.c:30960: by main__C2V_translate_file
/tmp/v_0/c2v.5510435663505860637.tmp.c:30871: by main__main
/tmp/v_0/c2v.5510435663505860637.tmp.c:33053: by main

Conversion tried in an Ubuntu 20.04 docker and libsecp256k1 build from source (cloned from https://github.com/bitcoin-core/secp256k1)