linux-kernel - Re: [PATCH] Use config scripts to detect ncurses libs for, menuconfig/nconfig dialogs

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Date:	Wed, 27 Feb 2013 15:30:07 +0100
From:	justin <jlec@...too.org>
To:	"Yann E. MORIN" <yann.morin.1998@...e.fr>
CC:	linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Use config scripts to detect ncurses libs for, menuconfig/nconfig
 dialogs

On 25/02/13 21:53, Yann E. MORIN wrote:
>>> Do you know of a distribution where this is the case, so I can test?

Fedora is also building with --with-termlib but they are using a ld
script to workaround the linking problem. I talked to our (Gentoo Linux)
base-system maintainers but they refused to apply this, instead they
said the consuming packages should be fixed. This is now an ongoing effort.

> But I'll see at installing a Gentoo (if that's not too complex) in a
> VM to do the checks (can you confirm that Gentoo by default configures
> ncurses with --with-termlib ?).
> 

It is not the "default" configuration in a classic sense, because it
will only build with that option if a consuming package requests this.

Here the receipt for generic reproduction:

* Get yourself a copy of our live dvd
(http://gentoo.inode.at//releases/x86/20121221/)
* Kick a vm or boot from the dvd (Make sure you have enough RAM, because
you will compile ncurses on it and place the git checkout there.)
* Get a terminal and switch to root
* Update the package db by running: emerge --sync
* Rebuild ncurses with:
ACCEPT_KEYWORDS="~x86" USE="tinfo" emerge -va1 ncurses
Important here that "tinfo" is marked as changing USE (colored green)
* Switch to ld.gold with "binutils-config --linker ld.gold" (make sure
that it worked out -> ld -v)
* git clone the kernel and do your testing.

Justin

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