Re: [PATCH] gdb/configure: fail configure if all targets requested with 32bit bfd

[Kevin Buettner <kevinb@redhat.com>]

On Thu, 23 Jan 2025 17:13:39 -0300
Guinevere Larsen <guinevere@redhat.com> wrote:

> As PR sim/28684 explains, it isn't possible to compile GDB with all
> targets enabled and not enabling 64 bit bfd. In 64 bit hosts, 64 bit bfd
> is forced, so the build works, but in 32 bit hosts, that has to be
> explicitly enabled.
> 
> I ran into this when I tried compiling GDB on a mips64 machine running a
> 32 bit OS. Along with the errors in the PR, several other architectures
> are also required, notably aarch64 and other explicitly 64bit targets.
> Additionally, some 32 bit files required for the gdb mips target aren't
> added to the makefile.
> 
> Considering the last comment in the bug says this isn't going to be
> fixed on the binutils side, I didn't think it was worth trying to fix
> the GDB side. Instead, this commit causes the configure script to fail
> if all targets were requested and 64 bit bfd isn't enabled. If that is
> ever fixed, we can revert this commit.
> 
> I considered adding this to the top level configure script, but couldn't
> figure out how to detect the situation in there, so this was my next
> best idea.
> 
> Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=28684

Sounds like the right approach to me...

Approved-by: Kevin Buettner <kevinb@redhat.com>