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Diffstat (limited to 'debian/README.cross')
| -rw-r--r-- | debian/README.cross | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/debian/README.cross b/debian/README.cross new file mode 100644 index 0000000..a732926 --- /dev/null +++ b/debian/README.cross @@ -0,0 +1,41 @@ +Cross building Perl XS module packages +====================================== + +Since version 5.30.0-7, the Perl packages provide a virtual package +called perl-xs-dev that XS module packages should build-depend on. This +will pull in Config.pm for the host architecture in the directory +/usr/lib/<triplet>/perl/cross-config-<version> (also symlinked to +/usr/lib/<triplet>/perl/cross-config since 5.30.0-8) that can be put on +the Perl search path for cross compilation. + +This is done automatically by debhelper dh_auto_* build systems for +ExtUtils::MakeMaker and Module::Build based builds since version 12.7. + +Cross building packages that link against libperl +================================================= + +Since version 5.22.1-7, libperl-dev no longer depends on perl of the +same architecture. This should make it possible to cross build packages +build depending on libperl-dev, by replacing ExtUtils::Embed calls like + + perl -MExtUtils::Embed -e ccopts + perl -MExtUtils::Embed -e ldopts + +with something like + + perl -I /usr/lib/$(dpkg-architecture -qDEB_HOST_MULTIARCH)/perl/cross-config-$(perl -MConfig -e 'print $Config{version}') -MExtUtils::Embed [...] + +or more simply, since 5.30.0-8, + + perl -I /usr/lib/$(dpkg-architecture -qDEB_HOST_MULTIARCH)/perl/cross-config -MExtUtils::Embed [...] + +so that Config.pm for the host (target) architecture gets loaded and +provides the right header and linker paths. + +This support is currently very much experimental. Success or failure +reports are welcome at <perl@packages.debian.org>. + +See https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=813384#10 for more +information. + + -- Niko Tyni <ntyni@debian.org> Sun, 20 Oct 2019 14:47:41 +0300 |