Control: tags -1 + patch Hi Antonio,
On Thu, Sep 08, 2022 at 06:32:52PM +0200, Helmut Grohne wrote: > That leads to the question of what actually is wrong. One relatively > obvious thing to be wrong (once you know that my host architecture was > armel) is the x86-64-linux-gnu part in there. It comes from > lib/gem2deb/gem_installer.rb and is computed by > rubygems_integration_target. There ist uses RbConfig::CONFIG['arch'], > which presumably uses the build architectures rbconfig.rb rather than > the host architecture one. Do you happen to know how to fix this aspect? > > However this is not what ultimately made the build fail. Later, we are > instructed to check mkmf.log to see the actual failure. Unfortunately, > mkmf.log is not part of the build log. Another build with keeping the > build tree later, one can see that it used the build architecture > compiler, which happened to fail to find the host architecture ruby > header. Again, this seems to be rooted in using the wrong rbconfig.rb. > I suppose that RUBYLIB is not augmented in the right way for running gem > install in gem_installer.rb. Does that make sense to you? > > I'd appreciate a response indicating whether I'm looking in the right > direction. Assuming that both of these would be correct, I tried implementing it (without knowing ruby). Before too long, I managed to cross build ruby-oj using the attached patch. It really does quite precisely what I sketched in the above paragraphs. Does that work for you? Helmut
diff --minimal -Nru gem2deb-2.0.3/debian/changelog gem2deb-2.0.3+nmu1/debian/changelog --- gem2deb-2.0.3/debian/changelog 2022-07-31 01:44:54.000000000 +0200 +++ gem2deb-2.0.3+nmu1/debian/changelog 2022-09-08 20:48:33.000000000 +0200 @@ -1,3 +1,10 @@ +gem2deb (2.0.3+nmu1) UNRELEASED; urgency=medium + + * Non-maintainer upload. + * Make gem_installer.rb work for cross building. (Closes: #1019397) + + -- Helmut Grohne <[email protected]> Thu, 08 Sep 2022 20:48:33 +0200 + gem2deb (2.0.3) unstable; urgency=medium * Gem2Deb::YAML: fix loading more metadata.yml files. diff --minimal -Nru gem2deb-2.0.3/lib/gem2deb/gem_installer.rb gem2deb-2.0.3+nmu1/lib/gem2deb/gem_installer.rb --- gem2deb-2.0.3/lib/gem2deb/gem_installer.rb 2022-07-31 01:44:54.000000000 +0200 +++ gem2deb-2.0.3+nmu1/lib/gem2deb/gem_installer.rb 2022-09-08 20:48:24.000000000 +0200 @@ -201,16 +201,17 @@ def rubygems_integration_target(rubyver) if metadata.has_native_extensions? - arch = RbConfig::CONFIG['arch'] api_version = Gem2Deb::RUBY_API_VERSION[rubyver] - "/usr/lib/#{arch}/rubygems-integration/#{api_version}" + "/usr/lib/#{host_arch}/rubygems-integration/#{api_version}" else "/usr/share/rubygems-integration/all" end end def run_gem(ruby, command, *args) - run(ruby, '-S', 'gem', command, '--config-file', '/dev/null', '--verbose', *args) + maybe_crossbuild(ruby) do + run(ruby, '-S', 'gem', command, '--config-file', '/dev/null', '--verbose', *args) + end end def load_gemspec_data!
