Name

       Debian::DpkgCross - Package of dpkg-cross commonly used functions

       The 2.x series of dpkg-cross is seeking to achieve its own removal by incorporating as
       much cross-building support as possible into dpkg itself. The number, scope and range of
       functions supported by this package is therefore only going to decrease. Any newly-written
       code using this package will need to keep up with changes in dpkg.  Developers are
       recommended to join the debian-dpkg and debian-embedded mailing lists and keep their code
       under review.

Copyright and License

        Copyright (C) 2004  Nikita Youshchenko <yoush@cs.msu.su>
        Copyright (C) 2004  Raphael Bossek <bossekr@debian.org>
        Copyright (c) 2007-2009  Neil Williams <codehelp@debian.org>

        This program is free software; you can redistribute it and/or modify
        it under the terms of the GNU General Public License as published by
        the Free Software Foundation; either version 2 of the License, or
        (at your option) any later version.

        This program is distributed in the hope that it will be useful,
        but WITHOUT ANY WARRANTY; without even the implied warranty of
        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        GNU General Public License for more details.

        You should have received a copy of the GNU General Public License
        along with this program; if not, write to the Free Software
        Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

Bugs

       Please report bugs via the Debian Bug Tracking System.

Support

       All enquiries to the "<debian-embedded@lists.debian.org"> mailing list.

MAKEFLAGS

       See bug #437507 Even if the other flags are needed CC, GCC and other compiler names should
       *NOT* be overridden in $ENV{'MAKEFLAGS'} because this prevents packages compiling and
       running build tools using CC_FOR_BUILD.  CDBS packages need to declare an empty override
       variable in debian/rules:

        DEB_CONFIGURE_SCRIPT_ENV=

       Depending on progress with dpkg cross-building support, the remaining overrides may also
       be removed. Do not rely on these being set.

read_config

       Read '$conffile' and save the definition in global variables all recognised variables.

       '$crossroot' will be set by setup(). Until setup() is called all "crossroot-<arch>"
       settings are stored within '%allcrossroots'.

       All package variables are stored within '%conf'.

       No variables are skipped.

       return: none

get_config

       Return the current configuration from read_config as a hash reference.

get_version

       Return the current DpkgCross version string used by all dpkg-cross scripts.

dump_debug_data

       Return a hashtable of assorted debug data collated during the current run that can be
       processed using Data::Dumper.

rewrite_pkg_name

       Converts a package name into the dpkg-cross package name.

       $1 - the package name to check and convert if needed return - the cross-package name

convert_filename($)

       Converts an original .deb filename into the dpkg-cross .deb filename or converts a dpkg-
       cross .deb filename into the original .deb filename.

       returns undef on error

get_architecture

       Returns the current architecture.

       return: Current architecture or empty if not set.

check_arch($arch)

       Checks that the supplied $arch is (or can be converted to) a DEB_HOST_GNU_TYPE that can be
       supported by dpkg-cross.

       returns the DPKG_HOST_GNU_TYPE or undef

setup

       Set global variables '$arch', '$crossbase', '$crossbin', '$crosslib32', '$crossdir',
       '$crossinc', '$crosslib', '$crosslib64', '$crossprefix', '$compilerpath' and
       '$deb_host_gnu_type' to defaults and substitute them with variables from '%conf' and
       '$arch'.

       return: none

create_tmpdir($basename)

       Safely create a temporary directory

        $1: Directory basename (random suffix will be added)

       return: Full directory pathname, undef if failed

convert_path($multiarch, $path)

       Convert path, substituting '$crossinc', '$crosslib', '$crosslib64', '$crosslib32',
       '$crossdir', allowing for multiarch paths. This function will be used while building
       foreign binary packages or converting GCC options.

        $1: Multiarch sub-directory to strip
        $2: Directory (and file) to convert.

       return: Converted path.

simplify_path($path)

       Simplify path. Remove duplicate slashes, "./", "dir/..", etc

       $1: Path to simplify.

       return: Simplified path.