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#!/usr/bin/perl
use strict;
use warnings;
use Getopt::Long;
sub find_output($);
sub gendep($);
sub dep_cpp($$);
sub dep_dir($);
sub run();
my %f2dep;
run;
exit 0;
sub run() {
my $build = $ENV{BUILDPATH};
mkdir $build;
chdir $build or die "Could not open build directory: $!";
mkdir 'bin';
mkdir 'obj';
mkdir 'modules';
symlink "$ENV{SOURCEPATH}/include", 'include';
$build = `pwd`;
chomp $build;
open MAKE, '>real.mk' or die "Could not write real.mk: $!";
chdir "$ENV{SOURCEPATH}/src";
print MAKE <<END;
# DO NOT EDIT
# Autogenerated by calcdep
VPATH = \$(SOURCEPATH)/src
all: bin/inspircd modules
END
my @core_deps;
for my $file (<*.cpp>, <modes/*.cpp>, "socketengines/$ENV{SOCKETENGINE}.cpp", "threadengines/threadengine_pthread.cpp") {
my $out = find_output $file;
dep_cpp $file, $out;
push @core_deps, $out;
}
my @modlist;
for my $file (<commands/*.cpp>, <modules/*.cpp>) {
my $out = find_output $file;
dep_cpp $file, $out;
push @modlist, $out;
}
opendir my $moddir, 'modules';
for my $dir (readdir $moddir) {
next unless $dir =~ /^m_/ && -d "modules/$dir";
mkdir "$build/obj/$dir";
dep_dir "modules/$dir";
push @modlist, "modules/$dir.so";
}
my $core_mk = join ' ', @core_deps;
my $mods = join ' ', @modlist;
print MAKE <<END;
bin/inspircd: $core_mk
\$(RUNCC) -o \$\@ \$(CORELDFLAGS) \$(LDLIBS) \$^
inspircd: bin/inspircd
modules: $mods
.PHONY: 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 'commands/') {
return "modules/$base.so";
} elsif ($path eq '' || $path eq 'modes/' || $path =~ /^[a-z]+engines\/$/) {
return "obj/$base.o";
} elsif ($path =~ m#modules/(m_.*)/#) {
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 'inspircd_version.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) = @_;
gendep $file;
print MAKE "$out: $file $f2dep{$file}\n";
print MAKE "\t@\$(SOURCEPATH)/make/unit-cc.pl \$(VERBOSE) \$< \$\@\n";
}
sub dep_dir($) {
my($dir) = @_;
my @ofiles;
opendir DIR, $dir;
for my $file (readdir DIR) {
next unless $file =~ /(.*)\.cpp$/;
my $ofile = find_output "$dir/$file";
dep_cpp "$dir/$file", $ofile;
push @ofiles, $ofile;
}
closedir DIR;
my $ofiles = join ' ', @ofiles;
print MAKE "$dir.so: $ofiles\n\t\$(RUNCC) \$(PICLDFLAGS) -o \$\@ \$^\n";
}
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