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Date:	Thu, 13 Nov 2014 15:18:04 +0100
From:	Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To:	cygwin AT cygwin DOT com
Subject:	Re: Setup 2.774 texlive postinstall takes 10+ hours)
Message-ID:	<20141113141804.GK2782@calimero.vinschen.de>
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On Nov 11 12:53, Corinna Vinschen wrote:
> On Nov 10 22:33, Yaakov Selkowitz wrote:
> > On 2014-11-10 22:23, Yaakov Selkowitz wrote:
> > >Dependency order of packages: libgcc1 base-cygwin cygwin dash tzcode
> > >libstdc++6 terminfo sed gzip libpcre1 grep libreadline7 bash
> > >libncursesw10
> > [snip]
> >=20
> > Now that I think about it, regardless of libgcc1, that still doesn't ma=
ke
> > much sense.  sed, grep, and bash depend on libintl8, which depends on
> > libiconv2, and libreadline7 (which is required by bash) itself depends =
on
> > libncursesw10, so that should be at least two places earlier.  All of t=
hose
> > dependencies are listed in setup.hint (and hence setup.ini), so is there
> > something wrong with setup itself?
>=20
> What about dependency loops?
>=20
> AFAICS, coreutils depends on tzcode, tzcode depends on coreutils.  Both
> depend on libgcc1.  This introduces a big problem in dependency
> resolution because there's no unambiguous starting point.
>=20
> What if we remove the coretuls dep from tzcode.
>=20
> Or, actually, what if we make sure that Base packages only depend
> on libs, but never on any other Base package?

Ok, now after a collegue of mine informed me about the existence of
tsort (*blush*), I could finally produce some more info about loops
in our dependencies.  I wrote a simple script:

awk '/^@ /{ left=3D$2; }
     /^requires: /{ for (i=3D2; i<=3DNF; ++i) print left " " $i; }
    ' < setup.ini | tsort

It found the following dependency loops which have to be fixed.
Most notably are the dep loops of _autorebase and _update-info-dir,
which we'll fix ASAP.

  GConf2 -> libgconf2_4 -> gconf-desktop-schemas -> GConf2

  xf86-video-dummy -> xorg-server -> xf86-video-dummy

  xf86-video-nested -> xorg-server -> xf86-video-nested

  texlive -> texlive-collection-basic -> texlive

  libautotrace3 -> libMagickCore5 -> libautotrace3

  libgeoclue0 -> geoclue -> libgeoclue0

  shared-mime-info -> libglib2.0_0 -> shared-mime-info

  libatspi0 -> at-spi2-core -> libatspi0

  libfam0 -> gamin -> libglib2.0_0 -> libfam0

  gsettings-desktop-schemas -> libglib2.0_0 -> gsettings-desktop-schemas

  libdbus1_3 -> dbus -> libdbus1_3

  php-Archive_Tar -> php-PEAR -> php-Archive_Tar

  autogen -> libopts-devel -> autogen

  python-libxslt -> python-libxml2 -> python-libxslt

  libopenldap2_4_2 -> libsasl2_3 -> libopenldap2_4_2

  perl-Mozilla-CA -> perl-IO-Socket-SSL -> perl-Mozilla-CA

  rubygems -> ruby-io-console -> ruby -> rubygems

  ruby-rake -> rubygems -> ruby-rake

  ruby-rdoc -> rubygems -> ruby-rdoc

  ruby-rdoc -> rubygems -> ruby-io-console -> ruby -> ruby-rdoc

  mingw64-i686-runtime -> mingw64-i686-gcc-core -> mingw64-i686-runtime

  mingw64-x86_64-runtime -> mingw64-x86_64-gcc-core -> mingw64-x86_64-runti=
me

  _autorebase -> rebase -> sed -> libintl8 -> libiconv2 -> libgcc1 -> _auto=
rebase

  _autorebase -> rebase -> coreutils -> libgmp10 -> _autorebase

  tesseract-ocr-eng -> tesseract-ocr -> tesseract-ocr-eng

  openmpi -> libopenmpi -> openmpi

  _autorebase -> rebase -> grep -> libpcre1 -> _autorebase

  _autorebase -> rebase -> grep -> bash -> libreadline7 -> libncursesw10 ->=
 libstdc++6 -> _autorebase

  _update-info-dir -> bash -> _update-info-dir

  _update-info-dir -> bash -> coreutils -> _update-info-dir

  _update-info-dir -> info -> _update-info-dir


Corinna

--=20
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat

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