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From: "terra at gnome dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug preprocessor/52566] #include with #pragma once and files'
 contents is the same
Date: Wed, 14 Dec 2022 13:27:55 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D52566

--- Comment #5 from M Welinder <terra at gnome dot org> ---
>From 108101:

Note also:

# gcc -MM c.c
c.o: c.c a.h

No b.h present!

I.e., Makefiles built with this will not pick up changes to the second file=
.=