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From: ludo@gnu.org (Ludovic =?UTF-8?Q?Court=C3=A8s?=)
Subject: bug#30756: gcc7 doesn't find stdlib.h
Date: Fri, 04 May 2018 22:39:46 +0200
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To: Mark H Weaver <mhw@netris.org>
Cc: 30756@debbugs.gnu.org, Giel van Schijndel <giel@mortis.eu>

Mark H Weaver <mhw@netris.org> skribis:

> On my own private branch, I worked around this problem by adding
> "-idirafter <LIBC>/include" to CXXFLAGS, but of course it's not a proper
> fix.  My workaround happens to be in Savannah on the
> 'reproduce-bug-29774' branch:
>
>   https://git.savannah.gnu.org/cgit/guix.git/commit/?h=3Dreproduce-bug-29=
774&id=3D87022e2666c5e68e865eb160a4bd8e9cdcc1a955

Perhaps we could achieve the same effect by adding =E2=80=9C-idirafter
LIBC/include=E2=80=9D to the default spec file, under =E2=80=98cpp_options=
=E2=80=99?
(We=E2=80=99d achieve that by modifying the value of =E2=80=98cpp_options=
=E2=80=99 in
gcc/gcc.c.)

I suppose that would fix the include_next issue that Giel describes?

Ludo=E2=80=99.