Re: Problems building GC 18.1 on CentOS 7

[Simon Marchi via Gdb <gdb@sourceware.org>]

On 2026-10-03 15:18, Tom Kacvinsky via Gdb wrote:
> Hi,
> 
> I found a few issues with building GDB 18.1 on CentOS 7, using
> GCC 16.1.0 (which I had built from source)  They are two fold
> 
> 1. An issue with ./gdb/tui/tui-io.c using macro define(s) that the
> system curses headers don't provide.
> 
> 2. An issue with ptrace macro define(s) that are provided in glibc
> 2.18 or later, but not on CentOS 7, which is glibc 2.17 based.
> 
> I used Claude Opus 5 to generate a patch and manually inspected it.
> I am not sure what the GDB policy is for AI assisted patches.
> 
> I will get the exact compilation failures and the patch to the list on
> Monday.  To be honest, when it comes to the patch, I think I need to
> be mindful that I am building on Linux (via __linux__), using GCC
> (via __GNU__) and the glibc version is less than 2.18 using
> __GLIBC_PREREQ from features.h
> 
> Regards,
> 
> Tom

Hi Tom,

Could you please open a bug on Bugzilla?

https://sourceware.org/bugzilla/

If we are going to make a fix targetting 18.2, we will need a bug number
attached in any case.

Thanks,

Simon