On Mon, 4 Dec 2023, 04:38 Xi Ruoyao, <xry111@xry111.site> wrote:

> On Mon, 2023-12-04 at 00:34 +0000, Jonny Grant wrote:
> > Is it this page?
> >
> > https://gcc.gnu.org/install/configure.html
> >
> > How about changing this line to clarify make just say building within
> the src tree does not work, and is unsupported?
> >
> > Change from:
> > "First, we highly recommend that GCC be built into a separate directory"
> >
> > To:
> > "First, we only support building GCC from a separate directory"
>
> This paragraph has been updated to:
>
> First, we highly recommend that GCC be built into a separate directory
> from the sources which does not reside within the source tree. This is
> how we generally build GCC; building where objdir is a subdirectory of
> srcdir should work as well; building where objdir == srcdir is
> unsupported.
>
> Richard told me using a new subdirectory in srcdir as objdir works fine
> and *is* supported (i. e. if it somehow stops to work we'll fix).  But
> objdir == srcdir has been broken for a long time and there is no
> intention to make it "work".
>
> The FAQ is a different page: https://gcc.gnu.org/wiki/FAQ#configure


i.e. the link I sent in my first reply.