DH_HASKELL_DEPENDS(1) Haskell devscripts documentation DH_HASKELL_DEPENDS(1)NAME
dh_haskell_depends - calculates Haskell dependencies on Cabalized libraries
SYNOPSIS
dh_haskell_depends [debhelper options] [-Xpackage] [--exclude=package] [file ...]
DESCRIPTION
dh_haskell_depends is a debhelper program that helps with calculating dependencies for building Haskell libraries.
It automates building libraries for the different supported Haskell systems in Debian.
This script writes the debian/$package.substvars file, including in it the haskell:Depends, haskell:Recommends, haskell:Suggests and
haskell:Extra-Depends variable. So, to use this package, include in the Depends: field in debian/control ${haskell:Depends}, and do the
same for Recommends, Suggests and Extra-Depends.
BUGS
hugs and ghc are the only supported targets at the moment. Cabal does not yet support nhc98.
SEE ALSO dh_haskell_provides(1)dh_haskell_shlibdeps(1)dh_haskell_extra_depends(1)debhelper(7)AUTHOR
John Goerzen <jgoerzen@complete.org>
Based on ideas in dh_python by Josselin Mouette <joss@debian.org>
Haskell devscripts 0.8.12 2011-07-30 DH_HASKELL_DEPENDS(1)
Check Out this Related Man Page
DH_SAMEVERSIONDEP(1) User Contributed Perl Documentation DH_SAMEVERSIONDEP(1)NAME
dh_sameversiondep - generate versioned dependency based on the versioned dependencies of the reference package.
SYNOPSIS
dh_sameversiondep [debhelper options]
DESCRIPTION
dh_sameversiondep is a helper tool which is able to generate a dependency that is versioned the same way as a dependency (coming from the
same source) of another reference package. dh_sameversiondep scans debian/control for the specially formatted substvar (see
"sameVersionDep substvar SPECIFICATION" section below), determines its value and writes it to debian/package.substvars file.
The most common use case for dh_sameversiondep tool is to keep your liba-dev package dependency on the external libb-dev package as tight
as your liba package depends on the respective external libb package (see "EXAMPLE" section for more information about this use case).
dh_sameversiondep works as follows:
o Searches for the sameVersionDep substvar in the Depends, Recommends, Suggests, Enhances and Pre-Depends fields of the requested
packages. When one is found, it is parsed and the dependency package name, reference package name and dependency type (either Depends
or Recommends etc.) are determined.
o All dependencies of the requested type are collected for the dependency package based on the dpkg-query --status output.
o All dependencies of the requested type are collected for the reference package either from debian/control (substvars are expanded) or
from dpkg-query --status output if the package was not found in debian/control.
o Both collections are intersected leaving only common packages in both collections.
o Common package list is filtered by leaving only those which come from the same source as dependency package.
o Whatever packages are left (most likely only one), their names are replaced with dependency package name preserving all versioning
information. This result is written to debian/package.substvars file as a value of the sameVersionDep substvar being processed.
dh_sameversiondep is very strict about errors. If either dependency package or the reference package cannot be found or the resulting
dependency set is empty, it will fail with an error.
dh_sameversiondep MUST be run before dh_gencontrol. However, it is recommended to run dh_sameversiondep after dh_shlibdeps.
sameVersionDep substvar SPECIFICATION
sameVersionDep substvar can appear in either Depends, Recommends, Suggests, Enhances or Pre-Depends field of any binary package. The field,
which the substvar appears in, becomes the default dependency type for that substvar. sameVersionDep should be formatted as follows
(everything is case sensitive):
${sameVersionDep:dependency[[:reference]-dependency type]}
dependency (mandatory)
The name of the package which you want to add as a dependency.
reference (optional)
The name of the package which dependencies are to be intersected with the dependencies of the dependency package. Defaults to the first
package in debian/control if ommited.
dependency type (optional)
Can be either Depends, Recommends, Suggests, Enhances or Pre-Depends. Defaults to the name of the field which the substvar was found
in. Specifies which type of dependencies to consider when analyzing dependency package and reference package.
EXAMPLE
Assume we have the following in debian/control:
Package: liba
Depends: libc (>= 0.1), depa, depb, depc
Package: libb
Depends: libd (>= 0.2), depd, depe, depf
Package: libab-dev
Depends: ${sameVersionDep:libc-dev}, ${sameVersionDep:libd-dev:libb}
Assumming that libc and libc-dev (both from the same source), as well as libd and libd-dev (both from the same source) are installed, the
value of "sameVersionDep:libc-dev" will be libc-dev (>= 0.1) and the value of "sameVersionDep:libd-dev:libb" will be libd-dev (>= 0.2).
"sameVersionDep:libc-dev" could also be written as "sameVersionDep:libc-dev:liba-Depends" and "sameVersionDep:libd-dev:libb" as
"sameVersionDep:libd-dev:libb-Depends" but it is not necessary because defaults are sufficient.
SEE ALSO debhelper(7)AUTHOR
Modestas Vainius <modax@debian.org>
perl v5.14.2 2012-08-05 DH_SAMEVERSIONDEP(1)