Re: Interesting error while building gcc pass 1

On 8/11/26 13:55, Bruce Dubbs ([email protected] via lfs-support 
Mailing List) wrote:
> On 8/11/26 12:44 PM, Pocket ([email protected] via lfs-support 
> Mailing List) wrote:
>> Linux From Scratch - Version r13.0-systemd
>> 5.3. GCC-15.2.0 - Pass 1
> 
> [snip]
> 
>> This is on a system that currently has gcc (GCC) 16.1.1 20260430.
>> Is this because of trying to build gcc-15 on a system that has gcc-16?
>>
>>  From the duck:
>> Libcody is a C++11 library implementing a communication protocol 
>> between compilers and build systems, used notably for GCC LTO 
>> jobserver integration with GNU Make.
> 
> This is a problem we've seen before. You might want to manually add 
> gcc-6.2.0 from the development book.
> 
>    -- Bruce
> 

I used systemd-nspawn a debian trixie image that had gcc-14 on it then 
ran the build procedure for gcc pass 1 and it successfully built.

I does appear that those errors are related to a newer version of gcc 
trying to build an older version. So the information that the duck had 
seems to be correct.

I found on the duck that if you have autoconf-2.69 you can do an 
autoreconf -fi before the configure statement and it should work.
I have not tested that as I don't have autoconf 2.69 availiable to me.

I am going to build all of chapter 5 in the nspawn container then I will 
switch back to the "standard way" and continue with chapter 6.  That 
should work as it should then be using gcc-15 at that point.

I am building in btrfs subvolumes and it gives me some advantages over 
building as stated in the book. At the completion of building a version 
of LFS I just rsync the btrfs subvolume to a USB drive, patch up the 
bootloader and fstab and then boot to check it out.


I decided to build version-13 so I had a stable point from which to 
build the development versions.


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