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From: Azamat Hackimov <azamat.hackimov@gmail.com>
Date: Sat, 17 Dec 2022 16:05:52 +0300
Message-ID: <CAFqVybrCgriQrR_LOqHom3VbgEEd85Qj3YP=ybd5bp9LR8om2Q@mail.gmail.com>
Subject: Re: [gentoo-dev] How to add -std=c++14 to CXXFLAGS of a cmake.eclass
based package?
To: gentoo-dev@lists.gentoo.org
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Hello.
You need to add
set(CMAKE_CXX_STANDARD 14)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
into CMakeLists.txt after project() declaration via patching. Since
this is an upstream issue, you need to notify upstream about C++17
incompatibility.
=D1=81=D0=B1, 17 =D0=B4=D0=B5=D0=BA. 2022 =D0=B3. =D0=B2 14:35, Andrey Groz=
in <grozin@woodpecker.gentoo.org>:
>
> Hello *,
>
> I'm trying to package a new version of sci-visualization/gle which now
> uses cmake. After some patching CMakeLists.txt, it configures
> successfully. But at build time it spits zillion errors
>
> error: ISO C++17 does not allow dynamic exception specifications
>
> The natural thing to try is to add -std=3Dc++14 to CXXFLAGS. So I tried
>
> src_compile() {
> CXXFLAGS=3D"${CXXFLAGS} -std=3Dc++14" cmake_src_compile
> }
>
> but this makes no difference, c++17 is still used. How to convince
> cmake_src_compile to use -std=3Dc++14?
>
> Thanks in advance,
> Andrey
>
--=20
>From Siberia with Love!