https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119657
--- Comment #3 from Igor Machado Coelho <igor.machado at gmail dot com> --- I see. I installed g++15 in Ubuntu 24.04 using the Plucky (25.04) repo... I don't have 'gas' command, I have 'as': $ as --version GNU assembler (GNU Binutils for Ubuntu) 2.42 Copyright (C) 2024 Free Software Foundation, Inc. This program is free software; you may redistribute it under the terms of the GNU General Public License version 3 or later. This program has absolutely no warranty. This assembler was configured for a target of `x86_64-linux-gnu'. Now I upgrade 'binutils' using plucky repo: $ as --version GNU assembler (GNU Binutils for Ubuntu) 2.44 Copyright (C) 2025 Free Software Foundation, Inc. This program is free software; you may redistribute it under the terms of the GNU General Public License version 3 or later. This program has absolutely no warranty. This assembler was configured for a target of `x86_64-linux-gnu'. Now problem is solved. Thanks! Since my setup is quite workaround, mixing 24.04 with 25.04, maybe it's not ubuntu fault... maybe it is. I'll try to contact them, thanks again.