zimoun writes: > Hi Nicoló, > Hum, I get these kind of messages: > > --8<---------------cut here---------------start------------->8--- > Internal error: encountered unexpected error in runtime: > ErrorException("type UnionAll has no field size") > jl_errorf at /tmp/guix-build-julia-1.5.3.drv-0/julia-1.5.3/src/rtutils.c:77 > --8<---------------cut here---------------end--------------->8--- > > for julia-datastructures for instance. Even if the build is fine and > my small experiments seems correct. > I'd say it's a julia bug [fn:1]. can be reproduced with: ```julia primitive type Foo{T} 32 end foo(T, x) = (Core.bitcast(Foo{T}, x); x) code_typed(foo, Tuple{Any, Int32}) ``` We need to test this with julia 1.5.4 or 1.6.0 (the latter has been released yesterday :D. I had a build recipe for some version in between 1.5.3 and 1.6.0, I'll check if it still works). Before the guix 1.2.1 release, we might want to upgrade to 1.5.4 at least. > Well, I have set this deprecation warning as a first commit in the v2. Thanks! I should have some time to re-check those later today Nicolò [fn:1] https://github.com/Juliaang/julia/issues/37532