linux-kernel - Re: [PATCH] kconfig: be more helpful if pkg-config is missing

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Message-ID: <CAK7LNATEUcoB8u-AYU6=hfS+NFbGEOV_9noCwGHWHNsqOK2e+g@mail.gmail.com>
Date:   Tue, 5 Nov 2019 13:28:57 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     Alyssa Ross <hi@...ssa.is>
Cc:     Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] kconfig: be more helpful if pkg-config is missing

On Tue, Nov 5, 2019 at 5:47 AM Alyssa Ross <hi@...ssa.is> wrote:
>
> If ncurses is installed, but at a non-default location, the previous
> error message was not helpful in resolving the situation.  Now, if
> ncurses can't be found, and pkg-config is not installed, it will
> suggest that pkg-config might need to be installed in addition to
> ncurses.
>
> Signed-off-by: Alyssa Ross <hi@...ssa.is>
> ---


I do not like to complicate the error message.

How about appending a little more info, like this?

*
* Unable to find the ncurses package.
* Install ncurses (ncurses-devel or libncurses-dev
* depending on your distribution).
*
* You may also need to install pkg-config to find the
* ncurses installed in a non-default location.
*


Thanks.




>  scripts/kconfig/mconf-cfg.sh | 14 ++++++++++++--
>  scripts/kconfig/nconf-cfg.sh | 14 ++++++++++++--
>  2 files changed, 24 insertions(+), 4 deletions(-)
>
> diff --git a/scripts/kconfig/mconf-cfg.sh b/scripts/kconfig/mconf-cfg.sh
> index c812872d7f9d..f547b13f77f6 100755
> --- a/scripts/kconfig/mconf-cfg.sh
> +++ b/scripts/kconfig/mconf-cfg.sh
> @@ -41,7 +41,17 @@ fi
>
>  echo >&2 "*"
>  echo >&2 "* Unable to find the ncurses package."
> -echo >&2 "* Install ncurses (ncurses-devel or libncurses-dev"
> -echo >&2 "* depending on your distribution)."
> +echo >&2 "*"
> +if [ -n "$(command -v pkg-config)" ]; then
> +       echo >&2 "* Install ncurses (ncurses-devel or libncurses-dev"
> +       echo >&2 "* depending on your distribution)."
> +else
> +       echo >&2 "* You may need to install ncurses"
> +       echo >&2 "* (ncurses-devel or libncurses-dev"
> +       echo >&2 "* depending on your distribution)."
> +       echo >&2 "*"
> +       echo >&2 "* If you have ncurses installed,"
> +       echo >&2 "* you may also need to install pkg-config."
> +fi
>  echo >&2 "*"
>  exit 1
> diff --git a/scripts/kconfig/nconf-cfg.sh b/scripts/kconfig/nconf-cfg.sh
> index 001559ef0a60..569226f1b497 100755
> --- a/scripts/kconfig/nconf-cfg.sh
> +++ b/scripts/kconfig/nconf-cfg.sh
> @@ -41,7 +41,17 @@ fi
>
>  echo >&2 "*"
>  echo >&2 "* Unable to find the ncurses package."
> -echo >&2 "* Install ncurses (ncurses-devel or libncurses-dev"
> -echo >&2 "* depending on your distribution)."
> +echo >&2 "*"
> +if [ -n "$(command -v pkg-config)" ]; then
> +       echo >&2 "* Install ncurses (ncurses-devel or libncurses-dev"
> +       echo >&2 "* depending on your distribution)."
> +else
> +       echo >&2 "* You may need to install ncurses"
> +       echo >&2 "* (ncurses-devel or libncurses-dev"
> +       echo >&2 "* depending on your distribution)."
> +       echo >&2 "*"
> +       echo >&2 "* If you have ncurses installed,"
> +       echo >&2 "* you may also need to install pkg-config."
> +fi
>  echo >&2 "*"
>  exit 1
> --
> 2.23.0
>


-- 
Best Regards
Masahiro Yamada