From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: sweet_f_a@gmx.de From: Ruediger Meier To: Karel Zak Subject: Re: [ANNOUNCE] util-linux v2.29-rc2 Date: Mon, 12 Dec 2016 15:31:57 +0100 Cc: util-linux@vger.kernel.org References: <20161019132505.cumn37cmgazlumcu@ws.net.home> <20161210171510.GH10558@vapier.lan> <20161212102929.5kx3hbgoh4a5tfte@ws.net.home> In-Reply-To: <20161212102929.5kx3hbgoh4a5tfte@ws.net.home> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Message-Id: <201612121531.57375.sweet_f_a@gmx.de> List-ID: On Monday 12 December 2016, Karel Zak wrote: > On Sat, Dec 10, 2016 at 12:15:10PM -0500, Mike Frysinger wrote: > > On 20 Oct 2016 17:19, Karel Zak wrote: > > > On Thu, Oct 20, 2016 at 01:34:24PM +0200, Ruediger Meier wrote: > > > > For me it looks like the even the ncurses authors do not like > > > > their own pc files. Disabled by default and it's a pain to get > > > > them built with correct names and installed in the right > > > > location. Even --prefix does not work for their pc files. Plus > > > > the backward compatibility problem ... > > > > > > OK, I have applied: > > > > > > https://github.com/karelzak/util-linux/commit/e5cc93b5a8854fce805 > > >37f86a244977df212dcb5 > > > > > > with ncurses-config and fallback to old good AC_CHECK_LIB. > > > > > > We can add fallback to pkg-config too, but it sounds like > > > overkill if ncurses-config is everywhere. > > > > ugh, this change makes things worse. the point of using pkg-config > > is also to get sane cross-compiling. by always running > > `xxx-config`, it now breaks cross-compiling. > > Does it mean that you have system (build root) where is no > ncurses-config{5,6}, but you have pkg-config only? Usually cross-compiled libs to be used by a cross compiler are installed in a prefix like /usr/i686-w64-mingw32/sys-root/mingw/ So you would probaby have such an ncurses5-config (which is not in PATH): /usr/i686-w64-mingw32/sys-root/mingw/bin/ncurses5-config Simply adding this bin dir to PATH wouldn't be a good idea because it may contain binaries build for another target. The "advantage" of pkg-config is that "configure --host=i686-w64-mingw32" is smart and tries to use a host-prefixed "i686-w64-mingw32-pkg-config" instead of just "pkg-config". The prefixed pkg-config is searching .pc files in the right sysroot. Though the smartness ends if you have PKG_CONFIG_PATH in your env ... > The argument for ncurses-config has been that it seems it's preferred > solution by ncurses upstream. > > It will be simple to extend UL_NCURSES_CHECK() function to support > also pkg-config. > > > why can't we just tell distros to fix their ncurses install ? it's > > not like 2.29, released a month ago, is getting rolled out to old > > distros where people can't update their ncurses systems. > > Well, it's pretty common that people recompile any package on the > current system. I think our goal is to support as much as possible > scenarios (yes, nothing is unlimited including my patience with > obscure installations ;-) > > "it's hard" is a pretty weak argument for distro maintainers. > > That's true. > > Karel