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use alienfile; use Config; configure { requires 'Alien::Build' => '2.37' }; my $test_program = <<'EOF'; #include <stdio.h> #include <libxml/xmlversion.h> #include <libxml/parser.h> #include <libxml/tree.h> int main(int argc, char *argv[]) { xmlDoc *doc = NULL; /* * xmlRead should fail, but having this call ensures * that the we have access to the symbols in -lxml2 * (LIBXML_DOTTED_VERSION below is in the header file) */ doc = xmlReadFile("foo.xml", NULL, 0); printf("xml version = '%s'\n", LIBXML_DOTTED_VERSION); } EOF my @try_flags = ( { cflags => '', libs => '-lxml2' }, { cflags => '-I/usr/include/libxml2', libs => '-lxml2' }, { cflags => '-I/usr/local/include/libxml2', libs => '-lxml2' }, ); plugin 'Probe::Vcpkg' => 'libxml2'; probe [ ['xml2-config', '--version' => \'%{.install.my_version}'], ['xml2-config', '--cflags' => \'%{.install.my_cflags}'], ['xml2-config', '--libs' => \'%{.install.my_libs}'], ]; plugin 'PkgConfig' => 'libxml-2.0'; plugin 'Probe::CBuilder' => ( cflags => $_->{cflags}, libs => $_->{libs}, program => $test_program, version => qr{xml version = '(.*?)'}, ) for @try_flags; plugin 'PkgConfig::MakeStatic' => (); my %bad_versions = map { $_ => 1 } ( # known bad versions # may have some extras, and may be incomplete. # but probably sufficient. # computed using maint/tags-to-versions.pl and the git repository # for libxml2. '2.0.0', '2.1.0','2.1.1', '2.2.0','2.2.1','2.2.2','2.2.3','2.2.4','2.2.5','2.2.6','2.2.7','2.2.8', '2.3.0','2.3.1','2.3.2','2.3.3','2.3.4','2.3.5','2.3.6','2.3.7','2.3.8','2.3.9','2.3.10','2.3.11','2.3.12','2.3.13','2.3.14', '2.4.0','2.4.1','2.4.2','2.4.3','2.4.4','2.4.5','2.4.6','2.4.7','2.4.8','2.4.9','2.4.10','2.4.11','2.4.12','2.4.13','2.4.14','2.4.15','2.4.16','2.4.17','2.4.18','2.4.19','2.4.20','2.4.21','2.4.22','2.4.23','2.4.24','2.4.25','2.4.26','2.4.27','2.4.28','2.4.29','2.4.30', '2.5.0','2.5.1','2.5.2','2.5.3','2.5.4','2.5.5','2.5.6','2.5.7','2.5.8','2.5.9','2.5.10','2.5.11', '2.6.0','2.6.1','2.6.2','2.6.3','2.6.4','2.6.5','2.6.6','2.6.7','2.6.8','2.6.9','2.6.10','2.6.11','2.6.12','2.6.13','2.6.14','2.6.15','2.6.19','2.6.20','2.6.25', '2.7.0','2.7.1', '2.9.4', ); meta->around_hook( probe => sub { my $orig = shift; my $build = shift; my $install_type = $orig->($build, @_); # if the system type is install, make sure the version isn't on the # blacklist. # Honor $ENV{FORCE} used in the Makefile.PL for XML-LibXML to allow # versions on the blacklist. if($install_type eq 'system' && !$ENV{FORCE}) { # the first is provided by Probe::CBuilder, or pkg-config plugins for AB >= 1.61 # the second is generated by the Probe::CBuilder plugin since forever (or thereabouts) # the thirds is from this alienfile, (see above with the xml2-config probe). my $version = $build->hook_prop->{version} || $build->install_prop->{plugin_probe_cbuilder_gather}->{version} || $build->install_prop->{my_version}; $version =~ s/-.*$//g; unless(defined $version) { print STDERR "Unfortunately, Alien::Libxml2 requires the version from the system libxml2 in\n", "order to determine if it is acceptible for use, but Alien::Build prior to 1.61\n", "did not provide this information in the probe step. Alien::Libxml2 can still\n", "find the system libxml2 on systems with xml2-config in the PATH, or if libxml2\n", "is available from one of the commonly known locations. If you want to detect\n", "the system libxml2 with a .pc file via pkg-config, then please upgrade\n", "Alien::Build to 1.61 or better\n"; return 'share'; } if($bad_versions{$version}) { print STDERR "Alien::Libxml2 is designed to work with XML::LibXML.\n\n". "The installed system version of libxml2 $version is not compatible with XML::LibXML (and probably buggy)!\n\n". " - don't expect XML::LibXML to build or work correctly with this version of libxml2!\n" . " - don't report errors with this version of libxml2!\n" . " - don't send patches for this version of libxml2!\n\n"; if($version eq '2.9.4') { print STDERR "XML::LibXML typically attempts to install with this version anyway, so will we.\n"; } else { print STDERR "XML::LibXML typcially refuses to install with this version unless forced, so we will\n"; print STDERR "attempt to download a newer version from the internet. If you prefer you can force\n"; print STDERR "Alien::Libxml2 to install with this possibly buggy version using:\n"; print STDERR "env FORCE=1 perl Makefile.PL\n"; print STDERR "or\n"; print STDERR "env FORCE=1 cpanm Alien::Libxml2\n"; return 'share'; } } } $install_type; }, ); plugin 'Prefer::BadVersion' => [ keys %bad_versions ]; share { # out of source build is borked on Windows, so we turn it # off there. Turn it on elsewhere as it saves a copy. meta->prop->{out_of_source} = $^O eq 'MSWin32' ? 0 : 1; plugin 'Download::GitLab' => ( gitlab_host => 'https://gitlab.gnome.org', gitlab_user => 'GNOME', gitlab_project => 'libxml2', type => 'link', format => 'tar.xz', version_from => 'tag_name', convert_version => sub { my $version = shift; $version =~ s/^v//; $version; }, ); if($^O eq 'MSWin32' && $Config{ccname} eq 'cl') { build [ sub { shift->install_prop->{prefix} =~ s/\//\\/g;}, 'cd win32', 'cscript configure.js prefix=%{.install.prefix} iconv=no compiler=msvc static=yes', 'nmake -f Makefile.msvc', 'nmake -f Makefile.msvc install', ]; plugin 'Gather::IsolateDynamic'; gather sub { my($build) = @_; my $prefix = $build->runtime_prop->{prefix}; $build->runtime_prop->{cflags} = "-I$prefix/include/libxml2"; $build->runtime_prop->{libs} = "-L$prefix/lib libxml2_a.lib"; }; } else { plugin 'Build::Autoconf' => (); build [ '%{configure} --prefix=%{.install.autoconf_prefix} --without-python --disable-shared --enable-static', '%{make}', '%{make} install', ]; plugin 'PkgConfig::MakeStatic' => (); } }; sys { meta->after_hook( gather_system => sub { my($build) = @_; return if defined $build->runtime_prop->{libs}; if($build->install_prop->{my_libs}) { $build->runtime_prop->{$_} = $build->install_prop->{"my_$_"} for qw( version cflags libs ); } }, ); };
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