-#!/usr/bin/perl
+#!/usr/bin/env perl
+#
+# InspIRCd -- Internet Relay Chat Daemon
+#
+# Copyright (C) 2014-2015 Attila Molnar <attilamolnar@hush.com>
+# Copyright (C) 2013, 2015-2019, 2021 Sadie Powell <sadie@witchery.services>
+# Copyright (C) 2012 Robby <robby@chatbelgie.be>
+# Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
+#
+# This file is part of InspIRCd. InspIRCd 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, version 2.
+#
+# 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, see <http://www.gnu.org/licenses/>.
+#
+
+
use strict;
-BEGIN { push @INC, '..'; }
-use make::configure;
+use warnings FATAL => qw(all);
+
+use File::Basename qw(basename dirname);
+use FindBin qw($RealDir);
+
+use lib dirname $RealDir;
+use make::common;
+
+use constant {
+ BUILDPATH => $ENV{BUILDPATH},
+ SOURCEPATH => $ENV{SOURCEPATH}
+};
+
+sub find_output;
+sub gendep($);
+sub dep_cpp($$$);
+sub dep_so($);
+sub dep_dir($$);
+sub run();
+
+my %f2dep;
+
+run;
+exit 0;
+
+sub run() {
+ create_directory(BUILDPATH, 0770) or die "Could not create build directory: $!";
+ chdir BUILDPATH or die "Could not open build directory: $!";
+ unlink 'include';
+ symlink "${\SOURCEPATH}/include", 'include';
+ mkdir $_ for qw/bin modules obj/;
+
+ open MAKE, '>real.mk' or die "Could not write real.mk: $!";
+ chdir "${\SOURCEPATH}/src";
+
+ run_dynamic();
+ close MAKE;
+}
+
+sub run_dynamic() {
+ print MAKE <<END;
+# DO NOT EDIT THIS FILE
+# It is autogenerated by make/calcdep.pl, and will be overwritten
+# every time you rerun make in the main directory
+VPATH = \$(SOURCEPATH)/src
+
+bad-target:
+ \@echo "This Makefile must be run by a sub-make from the source"
+ \@echo "in order to set the correct environment variables"
+ \@exit 1
+
+all: inspircd modules
+
+END
+ my(@core_deps, @modlist);
+ for my $file (<*.cpp>, <socketengines/*.cpp>, "threadengines/threadengine_pthread.cpp") {
+ my $out = find_output $file;
+ dep_cpp $file, $out, 'gen-o';
+ next if $file =~ m#^socketengines/# && $file ne "socketengines/socketengine_$ENV{SOCKETENGINE}.cpp";
+ # Having a module in the src directory is a bad idea because it will be linked to the core binary
+ if ($file =~ /^(m|core)_.*\.cpp/) {
+ my $correctsubdir = ($file =~ /^m_/ ? "modules" : "coremods");
+ print "Error: module $file is in the src directory, put it in src/$correctsubdir instead!\n";
+ exit 1;
+ }
+ push @core_deps, $out;
+ }
+
+ for my $directory (qw(coremods modules)) {
+ opendir(my $moddir, $directory);
+ for my $file (sort readdir $moddir) {
+ next if $file =~ /^\./;
+ if ($directory eq 'modules' && -e "modules/extra/$file" && !-l "modules/$file") {
+ # Incorrect symlink?
+ print "Replacing symlink for $file found in modules/extra\n";
+ rename "modules/$file", "modules/$file~";
+ symlink "extra/$file", "modules/$file";
+ }
+ if ($file =~ /^(?:core|m)_/ && -d "$directory/$file" && dep_dir "$directory/$file", "modules/$file") {
+ mkdir "${\BUILDPATH}/obj/$file";
+ push @modlist, "modules/$file.so";
+ }
+ if ($file =~ /^.*\.cpp$/) {
+ my $out = dep_so "$directory/$file";
+ push @modlist, $out;
+ }
+ }
+ }
+
+ my $core_mk = join ' ', @core_deps;
+ my $mods = join ' ', @modlist;
+ print MAKE <<END;
+
+bin/inspircd: $core_mk
+ @\$(SOURCEPATH)/make/unit-cc.pl core-ld \$\@ \$^ \$>
+
+inspircd: bin/inspircd
+
+modules: $mods
+
+.PHONY: all bad-target inspircd modules
+
+END
+}
+
+sub find_output {
+ my $file = shift;
+ my($path,$base) = $file =~ m#^((?:.*/)?)([^/]+)\.cpp# or die "Bad file $file";
+ if ($path eq 'modules/' || $path eq 'coremods/') {
+ return "modules/$base.so";
+ } elsif ($path eq '' || $path eq 'modes/' || $path =~ /^[a-z]+engines\/$/) {
+ return "obj/$base.o";
+ } elsif ($path =~ m#modules/(m_.*)/# || $path =~ m#coremods/(core_.*)/#) {
+ return "obj/$1/$base.o";
+ } else {
+ die "Can't determine output for $file";
+ }
+}
+
+sub gendep($) {
+ my $f = shift;
+ my $basedir = $f =~ m#(.*)/# ? $1 : '.';
+ return $f2dep{$f} if exists $f2dep{$f};
+ $f2dep{$f} = '';
+ my %dep;
+ my $link = readlink $f;
+ if (defined $link) {
+ $link = "$basedir/$link" unless $link =~ m#^/#;
+ $dep{$link}++;
+ }
+ open my $in, '<', $f or die "Could not read $f";
+ while (<$in>) {
+ if (/^\s*#\s*include\s*"([^"]+)"/) {
+ my $inc = $1;
+ next if $inc eq 'config.h' && $f eq '../include/inspircd.h';
+ my $found = 0;
+ for my $loc ("$basedir/$inc", "../include/$inc") {
+ next unless -e $loc;
+ $found++;
+ $dep{$_}++ for split / /, gendep $loc;
+ $loc =~ s#^\.\./##;
+ $dep{$loc}++;
+ }
+ if ($found == 0 && $inc ne 'inspircd_win32wrapper.h') {
+ print STDERR "WARNING: could not find header $inc for $f\n";
+ } elsif ($found > 1 && $basedir ne '../include') {
+ print STDERR "WARNING: ambiguous include $inc in $f\n";
+ }
+ }
+ }
+ close $in;
+ $f2dep{$f} = join ' ', sort keys %dep;
+ $f2dep{$f};
+}
+
+sub dep_cpp($$$) {
+ my($file, $out, $type) = @_;
+ gendep $file;
-my $file = shift;
+ print MAKE "$out: $file $f2dep{$file}\n";
+ print MAKE "\t@\$(SOURCEPATH)/make/unit-cc.pl $type \$\@ \$(SOURCEPATH)/src/$file \$>\n";
+}
-$file =~ /(.*)\.cpp$/ or die "Cannot process $file";
-my $base = $1;
+sub dep_so($) {
+ my($file) = @_;
+ my $out = find_output $file;
-my $out = "$base.d";
+ my $name = basename $out, '.so';
+ print MAKE ".PHONY: $name\n";
+ print MAKE "$name: $out\n";
-open IN, '<', $file or die "Could not read $file: $!";
-open OUT, '>', $out or die "Could not write $out: $!";
+ dep_cpp $file, $out, 'gen-so';
+ return $out;
+}
-my $cc_deps = qx($ENV{CC} $ENV{FLAGS} -MM $file);
-$cc_deps =~ s/.*?:\s*//;
+sub dep_dir($$) {
+ my($dir, $outdir) = @_;
+ my @ofiles;
+ opendir DIR, $dir;
+ for my $file (sort readdir DIR) {
+ next unless $file =~ /(.*)\.cpp$/;
+ my $ofile = find_output "$dir/$file";
+ dep_cpp "$dir/$file", $ofile, 'gen-o';
+ push @ofiles, $ofile;
+ }
+ closedir DIR;
+ if (@ofiles) {
+ my $ofiles = join ' ', @ofiles;
+ my $name = basename $outdir;
+ print MAKE ".PHONY: $name\n";
+ print MAKE "$name: $outdir.so\n";
+ print MAKE "$outdir.so: $ofiles\n";
+ print MAKE "\t@\$(SOURCEPATH)/make/unit-cc.pl link-dir \$\@ ${\SOURCEPATH}/src/$dir \$^ \$>\n";
+ return 1;
+ } else {
+ return 0;
+ }
+}
-my $ext = $file =~ m#(modules|commands)/[^/]+$# ? '.so' : '.o';
-print OUT "$base$ext: $cc_deps";
-print OUT "\t@../make/unit-cc.pl \$(VERBOSE) $file $base$ext\n";
-print OUT "$base.d: $cc_deps";
-print OUT "\t\@\$(VDEP_IN)\n";
-print OUT "\t../make/calcdep.pl $file\n";
-print OUT "\t\@\$(VDEP_OUT)\n";