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From: "vries at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug build/30751] [gdb/build] ODR violation for struct
 btrace_target_info
Date: Mon, 21 Aug 2023 06:55:14 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D30751

--- Comment #8 from Tom de Vries <vries at gcc dot gnu.org> ---
(In reply to Markus Metzger from comment #4)
> After configuring, I build GDB with:
>=20
>     $ make -sj$(nproc) CFLAGS=3D'-O2 -flto -Wall' CXXFLAGS=3D'-O2 -flto -=
Wall'
>=20
> and I get several fails, e.g.
>=20
> .../sim/m32r/traps.c:115:43: error: type of 'm32r2f_h_psw_get' does not
> match original declaration [-Werror=3Dlto-type-mismatch]
>   115 |           m32r2f_h_bpsw_set (current_cpu, m32r2f_h_psw_get
> (current_cpu));
>=20
> but no -Wodr warnings nor any other warnings related to btrace.

I think what may be happening is that if you're getting an error while buil=
ding
sim, gdb is not build at all, because all-gdb requires maybe-all-sim.

In that case, you could try building with --disable-sim.

--=20
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