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From: "marxin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/107327] internal compiler error: in tsubst_pack_expansion,
 at cp/pt.c:12930
Date: Fri, 21 Oct 2022 10:40:52 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D107327

--- Comment #7 from Martin Li=C5=A1ka <marxin at gcc dot gnu.org> ---
(In reply to Carlos E from comment #6)
> (In reply to Martin Li=C5=A1ka from comment #4)
> > > When you say to attach a preprocessed source, what would be the most
> > > accepted command that I should be running which can reliably show wha=
tever
> > > was preprocessed?=20=20=20
> >=20
> > Just append -E to the existing command line arguments, that would be fi=
ne.
>=20
> done.

We need what was likely printed to stdout, or saved to a .o file.

See what's the pre-processed source file:
echo '#include <stdio.h>' | gcc -x c - -E=