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From: Jonathan Wakely <jwakely.gcc@gmail.com>
To: "Hlusicka,
	Jakub (Ceske vysoke uceni technicke v Praze -...)"
	<ext.Jakub.Hlusicka@skoda-auto.cz>
Cc: "gcc-help@gcc.gnu.org" <gcc-help@gcc.gnu.org>
Subject: Re: Troubles with C++20 modules and CMake
Date: Wed, 21 Feb 2024 17:50:03 +0000	[thread overview]
Message-ID: <CAH6eHdTrVVZQU1oxEsSiZcw670SpWzWtKbNxhbLwRcwVmBvZJw@mail.gmail.com> (raw)
In-Reply-To: <AM8PR05MB79054A6DA87ABB08449F8BFA81572@AM8PR05MB7905.eurprd05.prod.outlook.com>

On Wed, 21 Feb 2024 at 12:43, Hlusicka, Jakub (Ceske vysoke uceni
technicke v Praze -...) via Gcc-help <gcc-help@gcc.gnu.org> wrote:
>
> Hello, I am trying to use C++20 modules with CMake and GCC, but I cannot seem to be able to get it to work. I am getting the following error message when running CMake to generate build files:
>
> CMake Error in core/CMakeLists.txt:
>   The target named "core" has C++ sources that may use modules, but the
>   compiler does not provide a way to discover the import graph dependencies.
>   See the cmake-cxxmodules(7) manual for details.  Use the
>   CMAKE_CXX_SCAN_FOR_MODULES variable to enable or disable scanning.
>
> The versions of the software I am using:
> GCC version: 13.2.1
> CMake version: 3.28.3
>
> Is this feature currently not supported, or am I doing something wrong?

As it says at https://cmake.org/cmake/help/latest/manual/cmake-cxxmodules.7.html#compiler-support
you need GCC 14 (which won't be released for a few months) to use
CMake's modules support.

      reply	other threads:[~2024-02-21 17:50 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-02-21 12:42 Hlusicka, Jakub (Ceske vysoke uceni technicke v Praze -...)
2024-02-21 17:50 ` Jonathan Wakely [this message]

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