+open my $m, '<', 'MANIFEST' or die "open(MANIFEST): $!\n";
+chomp(my @manifest = (<$m>));
+my @EXE_FILES = grep(m!^script/!, @manifest);
+my $v = {};
+my $t = {};
+$v->{txt} = [ qw(INSTALL README COPYING TODO HACKING) ];
+my @dtxt = grep(m!\ADocumentation/.*\.txt\z!, @manifest);
+push @dtxt, 'Documentation/standards.txt';
+for my $txt (@dtxt) {
+ my $html = $txt;
+ $html =~ s/\.txt\z/.html/;
+ $t->{"$html : $txt"} = [ "\$(txt2pre) <$txt" ];
+}
+$v->{t_slash_star_dot_t} = [ grep(m!\At/.*\.t\z!, @manifest) ];
+my @scripts = qw(scripts/ssoma-replay); # legacy
+my @syn = (@EXE_FILES, grep(m!^lib/.*\.pm$!, @manifest), @scripts);
+@syn = grep(!/DSKQXS\.pm/, @syn) if !eval { require IO::KQueue };
+@syn = grep(!/Unsubscribe\.pm/, @syn) if !eval { require Crypt::CBC };
+@syn = grep(!/SaPlugin/, @syn) if !eval { require Mail::SpamAssasin };
+$v->{syn_files} = \@syn;
+$v->{my_syntax} = [map { "$_.syntax" } @syn];
+$v->{-m1} = [ map { (split('/'))[-1] } @EXE_FILES ];
+$v->{-m5} = [ qw(public-inbox-config public-inbox-v1-format
+ public-inbox-v2-format) ];
+$v->{-m7} = [ qw(public-inbox-overview) ];
+$v->{-m8} = [ qw(public-inbox-daemon) ];
+my @sections = (1, 5, 7, 8);
+$v->{check_80} = [];
+$v->{manuals} = [];
+$v->{mantxt} = [];
+for my $i (@sections) {
+ my $ary = $v->{"-m$i"};
+ $v->{"m$i"} = $ary;
+ for my $m (@$ary) {
+ my $pod = "Documentation/$m.pod";
+ my $txt = "Documentation/$m.txt";
+ $t->{"$m.$i : $pod"} = [ "\$(podman) -s$i $pod \$@" ];
+ $t->{"$txt : $pod"} = [ "\$(podtext) $pod \$\@+",
+ "touch -r $pod \$\@+",
+ "mv \$\@+ \$@" ];
+ $t->{"Documentation/$m.html : $txt"} = [ "\$(txt2pre) <$txt" ];
+ $t->{".$m.cols : $m.$i"} = [
+ "\@echo CHECK80 $m.$i;".
+ "COLUMNS=80 \$(MAN) ./$m.$i | \$(check_man)" ];
+ }
+ push @{$v->{check_80}}, map { ".$_.cols" } @$ary;
+ my $manuals = $v->{"man$i"} = [ map { "$_.$i" } @$ary ];
+ push @{$v->{manuals}}, @$manuals;
+ push @{$v->{mantxt}}, map { "Documentation/$_.txt" } @$ary;
+}
+push @dtxt, @{$v->{mantxt}};
+$v->{docs} = [ @dtxt, 'NEWS' ];
+$v->{docs_html} = [ map {;
+ my $x = $_;
+ $x =~ s/\.txt\z//;
+ "$x.html"
+ } @{$v->{docs}} ];
+$v->{gz_docs} = [ map { "$_.gz" } (@{$v->{docs}},@{$v->{docs_html}}) ];
+$v->{rsync_docs} = [ @{$v->{gz_docs}}, @{$v->{docs}},
+ @{$v->{docs_html}}, qw(NEWS.atom NEWS.atom.gz)];
+
+# external manpages which we host ourselves, since some packages
+# (currently just Xapian) doesn't host manpages themselves.
+my @xman = qw(copydatabase.1 xapian-compact.1);
+$v->{xdocs} = [ map { "Documentation/.x/.$_.txt" } @xman ];
+$v->{xdocs_html} = [ map { "Documentation/.x/.$_.html" } @xman ];
+for (@{$v->{xdocs}}) {
+ $t->{"$_ : | Documentation/.x"} = [
+ '$(PERL) -w Documentation/extman.perl $@ >$@+',
+ 'mv $@+ $@'
+ ];
+ my $html = $_;
+ $html =~ s/\.txt\z/.html/;
+ $t->{"$html : $_"} = [ "\$(txt2pre) <$_" ];
+}
+$v->{gz_xdocs} = [ map { "$_.gz" } (@{$v->{xdocs_html}}, @{$v->{xdocs}}) ];
+$v->{rsync_xdocs} = [ @{$v->{gz_xdocs}}, @{$v->{xdocs_html}}, @{$v->{xdocs}} ];
+
+my $TGTS = join("\n", map {;
+ my $tgt_prereq = $_;
+ my $cmds = $t->{$_};
+ "$tgt_prereq\n".join('', map { "\t$_\n" } @$cmds);
+} sort keys %$t);
+
+my $VARS = join("\n", map {;
+ my $varname = $_;
+ join('', map { "$varname += $_\n" } sort @{$v->{$varname}});
+} grep(!/^-/, sort keys %$v));
+
+# Don't waste user's disk space by installing some pods from
+# imported code or internal use only
+my %man3 = map {; # semi-colon tells Perl this is a BLOCK (and not EXPR)
+ my $base = $_;
+ my $mod = $base;
+ $mod =~ s!/!::!g;
+ $mod =~ s/\.\w+\z//;
+ "lib/PublicInbox/$_" => "blib/man3/PublicInbox::$mod.3"
+} qw(Git.pm Import.pm WWW.pod SaPlugin/ListMirror.pod);