Compilation error due to addr_eq

[adrienluitot]

Hello!
I've seen you worked on porting OpenVAF to LLVM-18, that's very cool!
I cloned the "llvm18reloaded" branch, I'm not sure it is very stable though, I didn't know which one to take.

When I try to compile, I have a problem with the preprocessorlib.
I have this error:

error[E0658]: use of unstable library feature 'ptr_addr_eq'
  --> openvaf/preprocessor/src/scoped_arc_arena.rs:44:40
   |
44 |             if !sources.iter().any(|x| std::ptr::addr_eq(x.as_ptr(), contents.as_ptr())) {
   |                                        ^^^^^^^^^^^^^^^^^
   |
   = note: see issue #116324 <https://github.com/rust-lang/rust/issues/116324> for more information

I don't know a lot about rust, and don't really have the time to work on a fix.
Do you know a work around for this? Or should I use a different branch?

I think OpenVAF is a very good tool, and it should not be abandoned, so I'm very happy to see someone working on it.

By the way, for my environment:
OS: Ubuntu 24.04 (arm64 version -> used on Raspberry Pi 4)
Rust version: rustc 1.75.0 (82e1608df 2023-12-21)

[adrienluitot]

I actually found a solution by seeing the date of my rustc version, but I decided to leave the issue in case anyone has the same problem.

I saw the related issue dated from end of 2023, as my rustc version.
-> So I installed a more recent version of rustc (1.80) and there is no more problem with preprocessor.