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       Edos-builddebcheck  -  Check  satisfiability  of  Debian package build-


       edos-builddebcheck [option] ... Packagefile Sourcepackagefile


       edos-builddebcheck reads a set of Debian package descriptions from  the
       file Packagefile, each of which is in the format of deb-control(5), and
       a set of source package descriptions from the  file  Sourcepackagefile.
       All packages described in the file Packagefile must have the same value
       of their Architecture (if it is different from all).

       For instance, the Packages and Sources  files  as  found  on  a  Debian
       mirror  server,  or  in  the  directory /var/lib/apt/lists/ of a Debian
       system, are suitable as input files.

       edos-builddebcheck verifies for every  of  the  source  packages  (from
       Sourcepackagefile)   whether   its   build-dependencies,   build-indep-
       dependencies and build-conflicts  can  be  satisfied  from  the  binary
       packages  provided  in  Packagefile. Only build-relations that apply to
       the architecture (see below on how the architecture is determined)  are
       taken into account.

       Note that this is not the same thing as checking whether a distribution
       can be rebuild from scratch, for several reasons:

       1.  No actual compilation is taking place, this tool only does a static
       analysis of package relationships.

       2.   The binary packages in Packages are not necessarily those that are
       the  result  of   the   compilation   of   the   source   packages   in

       3.  We  do  not  check  for  cycles. For instance, suppose that we have
       source  packages  a  and  b  both  generating  one  binary  package  of
       respectively  the same name, and that a build-depends on b and b build-
       depends on a. Then we can not rebuild the set of packages from  scratch
       because of the cycle. However, if we already have binary packages a and
       b then we can recompile both of them. Consequently,  edos-builddebcheck
       will not report an error in this case.

       4.   The  underlying  logical  machine  does  a  complete  analysis  of
       alternatives, and might report satisfiability of  constraints  in  case
       actual tools (like apt) fail to find a solution.

       Build-essential packages are ignored in unversioned build-dependencies.
       The (architecture dependant) list of build-essential packages  is  read
       from  the  configuration  file.   If that file is not available than an
       architecture independent default value is used.


       -a, --architecture architecture
              Check  for  compilation  on  architecture.  Usually  it  is  not
              necessary  to  specify  the architecture since it can be derived
              from the Packages file.

       -be, --binexplain
              Add all explanations why build-dependencies are not satisfiable.
              Without  that  option  some of these explanations may be missing
              from the output in case a  source  package  build-depends  on  a
              binary  package  that  exists in Packagefile file but that edos-
              debchecks finds not to be installable inside Packagefile.


              Configuration file for edos-builddebcheck


       Edos-builddebcheck   has   been   written   by    Stefano    Zacchiroli
       <>  and  Ralf  Treinen  <>. It heavily
       relies on edos-debcheck which has been written by Jerome  Vouillon  for
       the EDOS project.