Re: [PATCH 3/3] configure: Emit warning when accelerator requested but not needed

[Thomas Huth]

On 20/01/2021 16.19, Philippe Mathieu-Daudé wrote:
> In some configurations it might be pointless to check and
> compile accelerator code. Do not deselect the accelerator,
> but emit a warning.
>
> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
> ---
>   configure | 21 +++++++++++++++++++++
>   1 file changed, 21 insertions(+)
>
> diff --git a/configure b/configure
> index a5159157a49..09e1cd8bfe6 100755
> --- a/configure
> +++ b/configure
> @@ -5514,6 +5514,27 @@ if test $git_update = 'yes' ; then
>       (cd "${source_path}" && GIT="$git" "./scripts/git-submodule.sh" update 
> "$git_submodules")
>   fi
>   
> +if [ "$softmmu" = "no" ]; then
> +    if [ "$tcg" = "enabled" ]; then
> +        echo "WARN: TCG accelerator selected but no target requires it"
> +    fi

What about linux-user? It needs TCG, but it can also be compiled with 
softmmu disabled, can't it?

 Thomas