[Pkg-gnupg-maint] debhelper compat levels
Daniel Kahn Gillmor
dkg at fifthhorseman.net
Mon Sep 8 15:06:53 UTC 2014
debhelper has different "compatibility levels", which introduce
backward-incompatible changes. these correspond with the major version
number of debhelper.
debhelper 9.* is available in squeeze-backports, wheezy, jessie, and sid.
debhelper-based packaging indicates which compatibility level to use
Several of the pkg-gnupg-team repos (gnupg, gpa, libgpg-error) use
compatibility level 7. The others use compat level 9.
I propose that we move them all to compat level 9 to stay current with
archive packaging practices, and because this is the recommended mode of
operation. details of the changes from 7 to 9 are below.
Any objections or concerns about moving pkg-gnupg-maint packages to
from debhelper(7), the differences between 7 and 9 are:
> v8 Changes from v7 are:
> - Commands will fail rather than warning when they are passed
> unknown options.
> - dh_makeshlibs will run dpkg-gensymbols on all shared
> libraries that it generates shlibs files for. So -X can be
> used to exclude libraries. Also, libraries in unusual
> locations that dpkg-gensymbols would not have processed
> before will be passed to it, a behavior change that can
> cause some packages to fail to build.
> - dh requires the sequence to run be specified as the first
> parameter, and any switches come after it. Ie, use "dh $@
> --foo", not "dh --foo $@".
> - dh_auto_* prefer to use Perl's Module::Build in preference
> to Makefile.PL.
> v9 This is the recommended mode of operation.
> Changes from v8 are:
> - Multiarch support. In particular, dh_auto_configure passes
> multiarch directories to autoconf in --libdir and
> - dh is aware of the usual dependencies between targets in
> debian/rules. So, "dh binary" will run any build, build-
> arch, build-indep, install, etc targets that exist in the
> rules file. There's no need to define an explicit binary
> target with explicit dependencies on the other targets.
> - dh_strip compresses debugging symbol files to reduce the
> installed size of -dbg packages.
> - dh_auto_configure does not include the source package name
> in --libexecdir when using autoconf.
> - dh does not default to enabling --with=python-support
> - All of the dh_auto_* debhelper programs and dh set
> environment variables listed by dpkg-buildflags, unless
> they are already set.
> - dh_auto_configure passes dpkg-buildflags CFLAGS, CPPFLAGS,
> and LDFLAGS to perl Makefile.PL and Build.PL
> - dh_strip puts separated debug symbols in a location based
> on their build-id.
> - Executable debhelper config files are run and their output
> used as the configuration.
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