CxxWrap 0.15.0 shared library loader is broken

[djturizo]

The shared library I'm using cannot be loaded under CxxWrap 0.15.0. Consider the file test.jl

module Lib
    using CxxWrap
    @wrapmodule(() -> joinpath(@__DIR__, "lib.so"))
    function __init__()
        @initcxx
        return
    end
end
println("OK")

Then on CxxWrap 0.15.0:

$ julia test.jl
malloc(): invalid size (unsorted)

$ julia test.jl
malloc(): smallbin double linked list corrupted

$ julia test.jl

[19701] signal (6.-6): Aborted
in expression starting at /home/daniel/EzPC-OPF/SCI/julia/test.jl:3
pthread_kill at /lib/x86_64-linux-gnu/libc.so.6 (unknown line)
raise at /lib/x86_64-linux-gnu/libc.so.6 (unknown line)
abort at /lib/x86_64-linux-gnu/libc.so.6 (unknown line)
corrupted size vs. prev_size
Aborted

The same code gives me non-deterministic fatal errors. CxxWrap 0.14.2 works perfectly fine though:

$ julia test.jl
OK

[barche]

Hi, did you build the library against libcxxwrap-julia 0.12.2? To ensure complete compatibility, you also need to build Julia itself from source and build libcxxwrap-julia against that, and then build your own lib against that, all with the same compiler.

[djturizo]

I was compiling against libcxxwrap-julia 0.11.2 because libcxxwrap-julia 0.12.2 would give me an error. I found the reason though. To explain, consider a simple class with an external function:

struct MyClass {
    int count;
    MyClass(int count_){
        this->count = count_;
    }
};

void add_one(MyClass* obj) {
    obj->count++;
    return;
}

In libcxxwrap-julia 0.11.2 it is valid to do:

JLCXX_MODULE define_julia_module(jlcxx::Module& mod) {
    mod.add_type<MyClass>("MyClass")
        .constructor<int>()
        .method("add_one", &add_one)
    ;
}

In libcxxwrap-julia 0.12.2 however the previous code gives an error. I guess it's my fault for adding functions external to a class as methods.